APA aipamena

Blumenthal, L. M., & Menger, K. (1970). Studies in geometry. San Francisco.

Chicago Style aipamena

Blumenthal, Leonard M., and Karl Menger. Studies in Geometry. San Francisco, 1970.

MLA aipamena

Blumenthal, Leonard M., and Karl Menger. Studies in Geometry. San Francisco, 1970.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.