Spranger, E. (1966). Briefwechsel 1912-1931: Briefe.
I tāruatia paitia ki te papatopenga
Kua rahua te tārua ki te papatopenga
Tohutoru Kātū Chicago (17th ed.)
Spranger, Eduard. Briefwechsel 1912-1931: Briefe. 1966.
I tāruatia paitia ki te papatopenga
Kua rahua te tārua ki te papatopenga
Tohutoro MLA (9th ed.)
Spranger, Eduard. Briefwechsel 1912-1931: Briefe. 1966.
I tāruatia paitia ki te papatopenga
Kua rahua te tārua ki te papatopenga
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