APA

International Symposium on Sweet Potato, Villarreal R. L. & Griggs T. (1982). Sweet Potato : Proceedings of the First International Symposium. Tainan, Taiwan: Asian Vegetable Research Development Center.

Chicago

International Symposium on Sweet Potato, Villarreal Ruben L and Griggs T.d. 1982. Sweet Potato : Proceedings of the First International Symposium. Tainan, Taiwan: Asian Vegetable Research Development Center.

Harvard

International Symposium on Sweet Potato, Villarreal R. L. and Griggs T. (1982). Sweet Potato : Proceedings of the First International Symposium. Tainan, Taiwan: Asian Vegetable Research Development Center.

MLA

International Symposium on Sweet Potato, Villarreal Ruben L and Griggs T.d. Sweet Potato : Proceedings of the First International Symposium. Tainan, Taiwan: Asian Vegetable Research Development Center. 1982.