APA (7th ed.) Citation

Frey, P. R. (1969). Chemistry problems and how to solve them (7th ed.). Barnes and Noble.

Chicago Style (17th ed.) Citation

Frey, Paul Reheard. Chemistry Problems and How to Solve Them. 7th ed. New York: Barnes and Noble, 1969.

MLA (9th ed.) Citation

Frey, Paul Reheard. Chemistry Problems and How to Solve Them. 7th ed. Barnes and Noble, 1969.

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