Cita APA

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

Chicago Edition Citation

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

Cita MLA

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