APA Edition Citation

Langbehn, G. J., Lathrop, T. G., & Martini, C. J. (1972). Fundamental concepts of mathematics.

Chicago Edition Citation

Langbehn, George J., Thomas G. Lathrop, and Carl J. Martini. Fundamental Concepts of Mathematics. Ohio, Charles E merril, 1972.

MLA Edition Citation

Langbehn, George J., et al. Fundamental Concepts of Mathematics. 1972.