HEIMLER, C. H., DANIEL, L., & LOCKARD, J. D. (1984). Focus on life science. Charles E. Merrill.
Chicago-čujuhus (17. p.)HEIMLER, Charles H., Lucy DANIEL, juo J. David LOCKARD. Focus on Life Science. Columbus: Charles E. Merrill, 1984.
MLA-čujuhus (9. p.)HEIMLER, Charles H., et al. Focus on Life Science. Charles E. Merrill, 1984.
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