Smallwood, W. M., & Greene, R. A. (1959). Greene and Bailey's Laboratory problems in biology: Accompanying Elements of biology. Allyn and Bacon.
Lua i Stíl Chicago (17ú heag.)Smallwood, W. M., agus Robert A. Greene. Greene and Bailey's Laboratory Problems in Biology: Accompanying Elements of Biology. Boston: Allyn and Bacon, 1959.
Lua MLA (8ú heag.)Smallwood, W. M., agus Robert A. Greene. Greene and Bailey's Laboratory Problems in Biology: Accompanying Elements of Biology. Allyn and Bacon, 1959.
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