Proceedings of the XVII international horticultural congress. Vol. 1-4.

MLA

Proceedings of the Xvii International Horticultural Congress. Vol. 1-4. East Lansing: Michigan State University, 1966.

APA

(1966). Proceedings of the XVII international horticultural congress. Vol. 1-4. East Lansing: Michigan State University.

Chicago

Proceedings of the XVII International Horticultural Congress. Vol. 1-4. East Lansing: Michigan State University, 1966.