Johnson, K. D., Rayle, D. L., & Wedberg, . H. L. (1984). Biology: An introduction. The Benjamin/ Cummings.
Chicago-čujuhus (17. p.)Johnson, Kenneth D., David L. Rayle, juo Hale L. Wedberg. Biology: An Introduction. Reading, Mass.: The Benjamin/ Cummings, 1984.
MLA-čujuhus (9. p.)Johnson, Kenneth D., et al. Biology: An Introduction. The Benjamin/ Cummings, 1984.
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