APA (7th ed.) Citation

Wooldridge, R., & Ractliffe, J. F. (1968). An introduction to ALGOL programming (3rd ed.,.). E.U.P..

Chicago Style (17th ed.) Citation

Wooldridge, R., and J. F. Ractliffe. An Introduction to ALGOL Programming. 3rd ed.,. Lond.: E.U.P., 1968.

MLA (8th ed.) Citation

Wooldridge, R., and J. F. Ractliffe. An Introduction to ALGOL Programming. 3rd ed.,. E.U.P., 1968.