APA (7th ed.) Citation

Marsh, L. G. (1969). check your answers: Let's explore mathematics books 3 and 4. A & C Black.

Chicago Style (17th ed.) Citation

Marsh, L. G. Check Your Answers: Let's Explore Mathematics Books 3 and 4. London: A & C Black, 1969.

MLA (9th ed.) Citation

Marsh, L. G. Check Your Answers: Let's Explore Mathematics Books 3 and 4. A & C Black, 1969.