Dyfyniad APA

Hedin, A. P., & Menn, J. J. H. (1988). Biotechnology for crop Protection. American Chemical Society.

Dyfyniad Arddull Chicago

Hedin, A. Paul, and J. Julius Hollingworth Menn. Biotechnology for Crop Protection. Washington DC: American Chemical Society, 1988.

Dyfyniad MLA

Hedin, A. Paul, and J. Julius Hollingworth Menn. Biotechnology for Crop Protection. American Chemical Society, 1988.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.