APA (7th ed.) Citation

Strevens, P. (1980). Teaching English as an international language : from practice to principle / Peter Strevens: From practice to principle. Pergamon.

Chicago Style (17th ed.) Citation

Strevens, Peter. Teaching English as an International Language : From Practice to Principle / Peter Strevens: From Practice to Principle. Oxford: Pergamon, 1980.

MLA (9th ed.) Citation

Strevens, Peter. Teaching English as an International Language : From Practice to Principle / Peter Strevens: From Practice to Principle. Pergamon, 1980.

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