(1980). [Baku: Jungfernbastei].
Tohutoru Kātū Chicago (17th ed.)[Baku: Jungfernbastei]. 1980.
Tohutoro MLA (9th ed.)[Baku: Jungfernbastei]. 1980.
Kia tūpato: Kāore pea ēnei kupu hautoa i te ōrite pū 100%.
Tohutoro APA (7th ed.)