Cita APA (7th ed.)

Brits, G. J., & Meynhardt, J. T. (1992). International workshop on intensive cultivation of Protea. ISHS.

Cita Chicago (17th ed.)

Brits, G. J., i J. T. Meynhardt. International Workshop on Intensive Cultivation of Protea. Wageningen: ISHS, 1992.

Cita MLA (9th ed.)

Brits, G. J., i J. T. Meynhardt. International Workshop on Intensive Cultivation of Protea. ISHS, 1992.