APA (7th ed.) Citation

Bergstra, J. A., & Heering, J. (1993). Homomorphism preserving algebraic specifications require hidden sorts.

Chicago Style (17th ed.) Citation

Bergstra, Jan A., and Jürgen Heering. Homomorphism Preserving Algebraic Specifications Require Hidden Sorts. Amsterdam, 1993.

MLA (9th ed.) Citation

Bergstra, Jan A., and Jürgen Heering. Homomorphism Preserving Algebraic Specifications Require Hidden Sorts. 1993.

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