International Working Group on Soilless Culture. (1977). Proceedings of the Fourth International Congress on Soilless Culture: Las Palmas, 25 October 1976 - 1 November 1976. IWOSC.
Chicago Style (17th ed.) CitationInternational Working Group on Soilless Culture. Proceedings of the Fourth International Congress on Soilless Culture: Las Palmas, 25 October 1976 - 1 November 1976. Wageningen: IWOSC, 1977.
MLA (9th ed.) CitationInternational Working Group on Soilless Culture. Proceedings of the Fourth International Congress on Soilless Culture: Las Palmas, 25 October 1976 - 1 November 1976. IWOSC, 1977.
Warning: These citations may not always be 100% accurate.