(1977). Corn and corn improvement. Wisconsin, USA: American Society of Agronomy, Inc.
Trích dẫn kiểu ChicagoCorn and Corn Improvement. Wisconsin, USA: American Society of Agronomy, Inc, 1977.
MLA引文Corn and Corn Improvement. Wisconsin, USA: American Society of Agronomy, Inc, 1977.
警告:這些引文格式不一定是100%准確.