APA (7th ed.) Citation

Caldwell, A. Screw tug design (1a ed.). Hutchinson.

Chicago Style (17th ed.) Citation

Caldwell, A. Screw Tug Design. 1a ed. Londres: Hutchinson.

MLA (9th ed.) Citation

Caldwell, A. Screw Tug Design. 1a ed. Hutchinson.

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