Dyfyniad APA

(1996). Derwent biotechnology abstracts: July 1982 - June 1996. London: Derwent Publications.

Dyfyniad Arddull Chicago

Derwent Biotechnology Abstracts: July 1982 - June 1996. London: Derwent Publications, 1996.

Dyfyniad MLA

Derwent Biotechnology Abstracts: July 1982 - June 1996. London: Derwent Publications, 1996.

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