APA (7th ed.) Citation

Symposium in Pure Mathematics, American Mathematical Society, & Heller, A. (1970). Applications of categorical algebra: [proceedings. American Mathematical Society.

Chicago Style (17th ed.) Citation

Symposium in Pure Mathematics, American Mathematical Society, and Alex Heller. Applications of Categorical Algebra: [proceedings. Providence, R.I.: American Mathematical Society, 1970.

MLA (9th ed.) Citation

Symposium in Pure Mathematics, et al. Applications of Categorical Algebra: [proceedings. American Mathematical Society, 1970.