APA (7th ed.) Citation

Rizza, P. F., & Hughes, J. C. (1982). Pennsylvania atlas: A thematic atlas of the keystone state (Rev. 2. ed.). Ptolemy Pr.

Chicago Style (17th ed.) Citation

Rizza, Paul F., and James C. Hughes. Pennsylvania Atlas: A Thematic Atlas of the Keystone State. Rev. 2. ed. Grove City, Pa: Ptolemy Pr, 1982.

MLA (9th ed.) Citation

Rizza, Paul F., and James C. Hughes. Pennsylvania Atlas: A Thematic Atlas of the Keystone State. Rev. 2. ed. Ptolemy Pr, 1982.