APA (7th ed.) Citation

Howe, D. (1973). Active English: Book 3. Oxford.

Chicago Style (17th ed.) Citation

Howe, D.H. Active English: Book 3. Oxford, 1973.

MLA (9th ed.) Citation

Howe, D.H. Active English: Book 3. Oxford, 1973.

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