APA (7th ed.) Citation

Sawyer, L. A., & Mitchell, W. H. (1973). The Liberty ships: The history of the "emergency" type cargo ships constructed in the United States during World War II (Revised ed.). David and Charles.

Chicago Style (17th ed.) Citation

Sawyer, L. A., and W. H. Mitchell. The Liberty Ships: The History of the "Emergency" Type Cargo Ships Constructed in the United States During World War II. Revised ed. Newton Abbott: David and Charles, 1973.

MLA (8th ed.) Citation

Sawyer, L. A., and W. H. Mitchell. The Liberty Ships: The History of the "Emergency" Type Cargo Ships Constructed in the United States During World War II. Revised ed. David and Charles, 1973.