APA (7th ed.) Citation

Stromme, E. (1969). Symposium on flower regulation in florist crops. ISHS.

Chicago Style (17th ed.) Citation

Stromme, E. Symposium on Flower Regulation in Florist Crops. La Haya: ISHS, 1969.

MLA (9th ed.) Citation

Stromme, E. Symposium on Flower Regulation in Florist Crops. ISHS, 1969.