APA

Symposium of the International Society for Tropical Root Crops, Ofori F., Hahn S. K. & South Pacific Commission. (1994). Proceedings of the ninth symposium of the international society for tropical root crops, held at Accra, Ghana, 20-26 October 1991. Netherlands: ISTRC.

Chicago

Symposium of the International Society for Tropical Root Crops, Ofori F, Hahn S K and South Pacific Commission. 1994. Proceedings of the ninth symposium of the international society for tropical root crops, held at Accra, Ghana, 20-26 October 1991. Netherlands: ISTRC.

Harvard

Symposium of the International Society for Tropical Root Crops, Ofori F., Hahn S. K. and South Pacific Commission. (1994). Proceedings of the ninth symposium of the international society for tropical root crops, held at Accra, Ghana, 20-26 October 1991. Netherlands: ISTRC.

MLA

Symposium of the International Society for Tropical Root Crops, Ofori F, Hahn S K and South Pacific Commission. Proceedings of the ninth symposium of the international society for tropical root crops, held at Accra, Ghana, 20-26 October 1991. Netherlands: ISTRC. 1994.