APA استشهاد

C G Ogden & R H Hedley. (1980). An Atlas of freshwater testate amobae. British museum.

استشهاد بنمط شيكاغو

C G Ogden و R H Hedley. An Atlas of Freshwater Testate Amobae. British museum, 1980.

MLA استشهاد

C G Ogden و R H Hedley. An Atlas of Freshwater Testate Amobae. British museum, 1980.