APA (7th ed.) Citation

Frow, E., & Frow, R. (1985). Frederick Engels' association with John Watts.

Chicago Style (17th ed.) Citation

Frow, Edmund, and Ruth Frow. Frederick Engels' Association with John Watts. 1985.

MLA (8th ed.) Citation

Frow, Edmund, and Ruth Frow. Frederick Engels' Association with John Watts. 1985.

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