APA-viite (7. p.)
Wardell, D. (1966). Practical help for christian workers: Features filling and indexing.
Chicago-viite (17. p.)
Wardell, Don. Practical Help for Christian Workers: Features Filling and Indexing. Winona lake, 1966.
MLA-viite (9. p.)
Wardell, Don. Practical Help for Christian Workers: Features Filling and Indexing. 1966.
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