Παραπομπή APA

Birkhoff, G., & Birkhoff, G. . B. (1970). Modern applied algebra. Mc Graw Hill.

Παραπομπή Chicago Style

Birkhoff, G., και G.; Bratee Birkhoff. Modern Applied Algebra. London: Mc Graw Hill, 1970.

Παραπομπή MLA

Birkhoff, G., και G.; Bratee Birkhoff. Modern Applied Algebra. Mc Graw Hill, 1970.