Dyfyniad APA

Smith, A., Carter, E. B., & Herrick, A. D. (1948). Drug research and development.

Dyfyniad Arddull Chicago

Smith, Austin, Edgar Brock Carter, and Arthur Donald Herrick. Drug Research and Development. bRevere Pub, 1948.

Dyfyniad MLA

Smith, Austin, et al. Drug Research and Development. 1948.

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