एपीए उद्धरण

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.

शिकागो स्टाइल उद्धरण

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

एमएलए उद्धरण

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