Dyfyniad APA

Simpson,Lance L, & Simpson, L. L. (1989). Botulinum neurotoxin and tetanus toxin. Academic Press.

Dyfyniad Arddull Chicago

Simpson,Lance L, and Lance L. Simpson. Botulinum Neurotoxin and Tetanus Toxin. San Diego: Academic Press, 1989.

Dyfyniad MLA

Simpson,Lance L, and Lance L. Simpson. Botulinum Neurotoxin and Tetanus Toxin. Academic Press, 1989.

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