APA (7th ed.) Citation

Thorsen, W. B. The American book collector. [publisher not identified].

Chicago Style (17th ed.) Citation

Thorsen, W. B. The American Book Collector. [Chicago]: [publisher not identified].

MLA (9th ed.) Citation

Thorsen, W. B. The American Book Collector. [publisher not identified].

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