Van Zandt, E. (1992). Projects in biology. Cherrytree Books.
Cita Chicago (17th ed.)Van Zandt, Eleanor. Projects in Biology. Bath, Avon [Eng.]: Cherrytree Books, 1992.
Cita MLA (9th ed.)Van Zandt, Eleanor. Projects in Biology. Cherrytree Books, 1992.
Atenció: Aquestes cites poden no estar 100% correctes.