APA (7th ed.) Citation

BECK, A., BLEICHER, M. N., & CROWE, D. W. (1969). Excursions into mathematics. Worth pub.

Chicago Style (17th ed.) Citation

BECK, Anatole, Michael N. BLEICHER, and Donald W. CROWE. Excursions into Mathematics. Madison: Worth pub, 1969.

MLA (9th ed.) Citation

BECK, Anatole, et al. Excursions into Mathematics. Worth pub, 1969.