Cita APA (7th ed.)

Sparnaaij, L. (1987). Third international symposium on carnation culture. ISHS.

Cita Chicago (17th ed.)

Sparnaaij, Leo. Third International Symposium on Carnation Culture. Wageningen: ISHS, 1987.

Cita MLA (9th ed.)

Sparnaaij, Leo. Third International Symposium on Carnation Culture. ISHS, 1987.