Beck, D., & Braithwaite, L. F. (1962). Invertebrate zoology: Laboratory workbook (2nd ed.). Burgess Pub.
Cita Chicago (17th ed.)Beck, D., i Lee F. Braithwaite. Invertebrate Zoology: Laboratory Workbook. 2nd ed. Minneapolis, Minn: Burgess Pub, 1962.
Cita MLA (9th ed.)Beck, D., i Lee F. Braithwaite. Invertebrate Zoology: Laboratory Workbook. 2nd ed. Burgess Pub, 1962.
Atenció: Aquestes cites poden no estar 100% correctes.