APA (7th ed.) Citation

Ledermann, W. (1985). Introduction to group theory. Longman Group.

Chicago Style (17th ed.) Citation

Ledermann, W. Introduction to Group Theory. Longman Group, 1985.

MLA (8th ed.) Citation

Ledermann, W. Introduction to Group Theory. Longman Group, 1985.

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