Snodgrass, R. E. (1935). Principles of insect morphology. McGraw-Hill.
Chicago Style aipamenaSnodgrass, R E. Principles of Insect Morphology. New York: McGraw-Hill, 1935.
MLA aipamenaSnodgrass, R E. Principles of Insect Morphology. McGraw-Hill, 1935.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.