Gaya APA

X., E, D, F., Burkhart, R, E. (1970). Perspectives on our time: Issues and essays . Boston: Houghton Mifflin Company.

Gaya MLA

X., Editor, Davy,, Francis., Burkhart, Robert, E.. "Perspectives on our time: Issues and essays". Boston: Houghton Mifflin Company, 1970. Text.