International Protea Research Symposium Cape Town, South Africa, International Society for Horticultural Science. Protea Working Group, International Society for Horticultural Science. Section for Ornamental Plants, Meynhardt, J. T., Ben-Jaacov, J., & Ferreira, D. I. (1986). First International Protea Research Symposium: Cape Town, South Africa, 28 and 29 August 1985. International Society for Horticultural Science.
Čikaški stil citiranja (17. izdanje)International Protea Research Symposium Cape Town, South Africa, International Society for Horticultural Science. Protea Working Group, International Society for Horticultural Science. Section for Ornamental Plants, J. T. Meynhardt, J. Ben-Jaacov, i D. I. Ferreira. First International Protea Research Symposium: Cape Town, South Africa, 28 and 29 August 1985. Wageningen, Netherlands: International Society for Horticultural Science, 1986.
MLA način citiranja (8. izdanje)International Protea Research Symposium Cape Town, South Africa, et al. First International Protea Research Symposium: Cape Town, South Africa, 28 and 29 August 1985. International Society for Horticultural Science, 1986.