APA (7th ed.) Citation

Massey, W. S. (1968). Introduction to homology theory. Yale Univ., Dep. of Math.

Chicago Style (17th ed.) Citation

Massey, William S. Introduction to Homology Theory. New Haven, Conn: Yale Univ., Dep. of Math, 1968.

MLA (9th ed.) Citation

Massey, William S. Introduction to Homology Theory. Yale Univ., Dep. of Math, 1968.

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