APA Edition Citation

Hackstaff, L. H. (1966). Systems of formal logic. D. Reidel, Gordon and Breach.

Chicago Edition Citation

Hackstaff, L. H. Systems of Formal Logic. Dordrecht : New York: D. Reidel, Gordon and Breach, 1966.

MLA Edition Citation

Hackstaff, L. H. Systems of Formal Logic. D. Reidel, Gordon and Breach, 1966.

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