APA

International Congress on Soilless Culture, . (1980). Proceedings of the international congress on soilless culture. Wageningen, The Netherlands: International Soilless Culture.

Chicago

International Congress on Soilless Culture, . 1980. Proceedings of the international congress on soilless culture. Wageningen, The Netherlands: International Soilless Culture.

Harvard

International Congress on Soilless Culture, . (1980). Proceedings of the international congress on soilless culture. Wageningen, The Netherlands: International Soilless Culture.

MLA

International Congress on Soilless Culture, . Proceedings of the international congress on soilless culture. Wageningen, The Netherlands: International Soilless Culture. 1980.