Cita APA (7th ed.)
Peifer, R. W. (1985). Introduction to biology: Laboratory exercises (4th ed.). Burgess.
Cita Chicago (17th ed.)
Peifer, R. W. Introduction to Biology: Laboratory Exercises. 4th ed. Minnesota: Burgess, 1985.
Cita MLA (9th ed.)
Peifer, R. W. Introduction to Biology: Laboratory Exercises. 4th ed. Burgess, 1985.
Atenció: Aquestes cites poden no estar 100% correctes.