APA (7th ed.) Citation

International Horticultural Congress Rome, Italy. (1935). Definitive programme, XIth International Horticultural Congress ...: 16-21 September 1935, Rome ..

Chicago Style (17th ed.) Citation

International Horticultural Congress Rome, Italy. Definitive Programme, XIth International Horticultural Congress ...: 16-21 September 1935, Rome .. [Roma], 1935.

MLA (9th ed.) Citation

International Horticultural Congress Rome, Italy. Definitive Programme, XIth International Horticultural Congress ...: 16-21 September 1935, Rome .. 1935.