APA (7th ed.) Citation

Tennent, R. D., & O'Hearn, P. W. (1997). ALGOL-like languages. Birkhäuser.

Chicago Style (17th ed.) Citation

Tennent, R. D., and Peter W. O'Hearn. ALGOL-like Languages. Boston: Birkhäuser, 1997.

MLA (8th ed.) Citation

Tennent, R. D., and Peter W. O'Hearn. ALGOL-like Languages. Birkhäuser, 1997.