Spijker, v. d. H. (1983). Omotropia. Gruppo Abele.
I tāruatia paitia ki te papatopenga
Kua rahua te tārua ki te papatopenga
Tohutoru Kātū Chicago (17th ed.)
Spijker, van de Herman. Omotropia. Torino: Gruppo Abele, 1983.
I tāruatia paitia ki te papatopenga
Kua rahua te tārua ki te papatopenga
Tohutoro MLA (9th ed.)
Spijker, van de Herman. Omotropia. Gruppo Abele, 1983.
I tāruatia paitia ki te papatopenga
Kua rahua te tārua ki te papatopenga
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