APA (7th ed.) Citation

Croom, F. H. Principles of topology. Saunders College Publishing.

Chicago Style (17th ed.) Citation

Croom, Fred H. Principles of Topology. Saunders College Publishing.

MLA (8th ed.) Citation

Croom, Fred H. Principles of Topology. Saunders College Publishing.

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