Cita APA (7a ed.)

HEIMLER, C. H., DANIEL, L., & LOCKARD, J. D. (1984). Focus on life science. Charles E. Merrill.

Cita Chicago Style (17a ed.)

HEIMLER, Charles H., Lucy DANIEL, y J. David LOCKARD. Focus on Life Science. Columbus: Charles E. Merrill, 1984.

Cita MLA (9a ed.)

HEIMLER, Charles H., et al. Focus on Life Science. Charles E. Merrill, 1984.