Dyfyniad APA

(1995). Derwent biotechnology abstracts: July 1982 - September 1995. London: Derwent Publications.

Dyfyniad Arddull Chicago

Derwent Biotechnology Abstracts: July 1982 - September 1995. London: Derwent Publications, 1995.

Dyfyniad MLA

Derwent Biotechnology Abstracts: July 1982 - September 1995. London: Derwent Publications, 1995.

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