Trích dẫn APA

Howard, A., & Howard, G. (1929). Application of Science to Crop- Production: An experiment carried out at the Institute of Plant Industry, Indore. Oxford University Press.

Trích dẫn kiểu Chicago

Howard, Albert, và Gabrielle Howard. Application of Science to Crop- Production: An Experiment Carried Out at the Institute of Plant Industry, Indore. Humphrey: Oxford University Press, 1929.

Trích dẫn MLA

Howard, Albert, và Gabrielle Howard. Application of Science to Crop- Production: An Experiment Carried Out at the Institute of Plant Industry, Indore. Oxford University Press, 1929.

Cảnh báo: Các trích dẫn này có thể không phải lúc nào cũng chính xác 100%.