APA (7th ed.) Citation
Fried, G. H. (1990). Biología (1a.ed.). McGraw-Hill.
Chicago Style (17th ed.) Citation
Fried, George H. Biología. 1a.ed. Madrid: McGraw-Hill, 1990.
MLA (9th ed.) Citation
Fried, George H. Biología. 1a.ed. McGraw-Hill, 1990.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.