Beetz, B., Carpenter, S., & Fraden, J. (1967). Investigations for the biology laboratory. California: The National Press.
शिकागो स्टाइल उद्धरणBeetz, Brigitta., Samuel Carpenter, और Jules Fraden. Investigations for the Biology Laboratory. California: The National Press, 1967.
एमएलए उद्धरणBeetz, Brigitta., Samuel Carpenter, और Jules Fraden. Investigations for the Biology Laboratory. California: The National Press, 1967.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.