Raven P.H., J. G. (1988). Understanding biology. Soyonbo print.
Chicago Style (17th ed.) CitationRaven P.H., Johnson G.B. Understanding Biology. America: Soyonbo print, 1988.
MLA (8th ed.) CitationRaven P.H., Johnson G.B. Understanding Biology. Soyonbo print, 1988.
Warning: These citations may not always be 100% accurate.