APA (7th ed.) Citation

Ledermann, W. (1973). Introduction to group theory. Longman.

Chicago Style (17th ed.) Citation

Ledermann, Walter. Introduction to Group Theory. London: Longman, 1973.

MLA (8th ed.) Citation

Ledermann, Walter. Introduction to Group Theory. Longman, 1973.

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