Santiago, R. M. (1981). Growth of coconut seedlings as influenced by different fertility levels in three soil types [microform]. Photoduplication Service. University of the Philippines Library.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Santiago, Rebecco M. Growth of Coconut Seedlings as Influenced by Different Fertility Levels in Three Soil Types [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1981.
Trích dẫn kiểu MLA (xuất bản lần thứ 9)Santiago, Rebecco M. Growth of Coconut Seedlings as Influenced by Different Fertility Levels in Three Soil Types [microform]. Photoduplication Service. University of the Philippines Library, 1981.
Cảnh báo: Các trích dẫn này có thể không phải lúc nào cũng chính xác 100%.