References:

ANONYMOUS. 1978 - 1998. LANDBOUWEEKBLAD.

ANONYMOUS. 1979 ‑ 1996. Journal of the South African Protea Producers and Exporters Association (SAPPEX News).

ANONYMOUS. 1982. Poster of Proteas in Hawaii.

ANONYMOUS. 1986 - 1992. Journal of the International Protea Association (IPA Journal).

ANONYMOUS. 1986. Riverlea Nurseries. Complete Master Catalogue and Cultural Guide of Proteaceae.

ANONYMOUS. 1986. Zorro Protea Farms Sales List.

ANONYMOUS. 1987. Brochure of the International Protea Association (IPA Brochure).

ANONYMOUS. 1987. Exotic Australian native flowers. Poster printed by Australian Flower Exports (Pty)Ltd, Victoria, Australia.

ANONYMOUS. 1988. Australian fresh flower buyers' guide. Published by the Australian Trade Commission.

ANONYMOUS. 1988 - 1994. Australian Plant Varieties Journal. Volumes 1 - 7. Official journal of the Australian Plant Variety Rights Office.

ANONYMOUS. 1991. Protea and other wild flowers around the world. Poster published by the Secretariat, IPA, Victoria, Australia.

ANONYMOUS. 1992. Zorro Protea Farms Sales List.

ANONYMOUS. 1993. Fynbos Commercial Products Poster. Fynbos Research Unit, Elsenburg, South Africa.

ANONYMOUS. 1995. Journal of the Australian Flora and Protea Growers Association. Volume 7, No 1. Information sheet produced by Central Coast Protea & Waratah, Australia.

ANONYMOUS. 1998-2000. UPOV-ROM Plant Variety Database. International Union for the Protection of New Varieties of Plants.

DUNCAN & DAVIES.1978. Trees, Shrubs and Climbers Nursery Catalogue.

HITCHCOCK, A. & BRITS, G.J. 1992. More Pincushion (Leucospermum) cultivars available from Kirstenbosch. Veld & Flora vol. 78(3):74‑75.

LITTLEJOHN, G. 1995. Protea and Leucadendron Cultivars - New Releases. Roodeplaat Bulletin No 44.

MATTHEWS, L. 1993. Protea Growers' Handbook for New Zealanders. David Bateman Ltd., Auckland, New Zealand.

MATTHEWS, L.J. & CARTER, Z. 1983. South African Proteaceae in New Zealand. Matthews Publishing, Manakau, New Zealand.

MATTHEWS, P.(Ed.) 1981. Growing and marketing of Proteas. Report of the First International Conference of Protea Growers, Melbourne, Victoria, Australia. Proteaflora Enterprises (Pty)Ltd, Australia.

PARVIN, P.E.; CRILEY, R.A. & BULLOCK, R.M. 1973. Proteas: Developmental Research for a New Cut Flower Crop. HortScience vol. 8(4):299-303.

VOIGTS, M. 1982. South Africa's Proteaceae - know them and grow them. C.Struik (Pty)Ltd, Cape Town, South Africa.