APA (7th ed.) Citation

International Horticultural Congress The Hague. (1956). Report. H. Veenman.

Chicago Style (17th ed.) Citation

International Horticultural Congress The Hague. Report. Wageningen, Netherlands: H. Veenman, 1956.

MLA (8th ed.) Citation

International Horticultural Congress The Hague. Report. H. Veenman, 1956.