(1966). Free and inexpensive learning materials. Nashville, Tennessee.
शिकागो स्टाइल उद्धरणFree and Inexpensive Learning Materials. Nashville, Tennessee, 1966.
एमएलए उद्धरणFree and Inexpensive Learning Materials. Nashville, Tennessee, 1966.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.