Van Til, W. (1981). Writing for professional publication. Boston: Allyn and Bacon.
शिकागो स्टाइल उद्धरणVan Til, William. Writing for Professional Publication. Boston: Allyn and Bacon, 1981.
एमएलए उद्धरणVan Til, William. Writing for Professional Publication. Boston: Allyn and Bacon, 1981.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.