Wulff, I. (1962). Burial customs among the Yakan, a Muslim people in the Southern Philippines. [publisher not identified].
Chicago-referens (17:e uppl.)Wulff, Inger. Burial Customs Among the Yakan, a Muslim People in the Southern Philippines. [Denmark]: [publisher not identified], 1962.
MLA-referens (9:e uppl.)Wulff, Inger. Burial Customs Among the Yakan, a Muslim People in the Southern Philippines. [publisher not identified], 1962.
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