(1989). Values. Houghton Mifflin.
Tohutoru Kātū Chicago (17th ed.)Values. Boston: Houghton Mifflin, 1989.
Tohutoro MLA (9th ed.)Values. Houghton Mifflin, 1989.
Kia tūpato: Kāore pea ēnei kupu hautoa i te ōrite pū 100%.
Tohutoro APA (7th ed.)