Tohutoro APA (7th ed.)

(1970). Perspective on our time: Issues and essays. Houghton Mifflin.

Tohutoru Kātū Chicago (17th ed.)

Perspective on Our Time: Issues and Essays. Boston: Houghton Mifflin, 1970.

Tohutoro MLA (9th ed.)

Perspective on Our Time: Issues and Essays. Houghton Mifflin, 1970.