Grotjahn, A. (1894). Beitrag zur Lehre v.d. Pupura.
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Tohutoru Kātū Chicago (17th ed.)
Grotjahn, Alfred. Beitrag Zur Lehre V.d. Pupura. Berlin, 1894.
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Tohutoro MLA (9th ed.)
Grotjahn, Alfred. Beitrag Zur Lehre V.d. Pupura. 1894.
I tāruatia paitia ki te papatopenga
Kua rahua te tārua ki te papatopenga
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