APA (7th ed.) Citation

Gabriel, P. (1967). Calculus of fractions and homotopy theory.

Chicago Style (17th ed.) Citation

Gabriel, Pierre. Calculus of Fractions and Homotopy Theory. 1967.

MLA (9th ed.) Citation

Gabriel, Pierre. Calculus of Fractions and Homotopy Theory. 1967.

Warning: These citations may not always be 100% accurate.