Johnson, C. E. (1968). Social and Natural Biology: Selections from Contemporary Classics. D. Van Nostrand Company.
Chicago-čujuhus (17. p.)Johnson, Cecil E. Social and Natural Biology: Selections from Contemporary Classics. Princeton, N.J.: D. Van Nostrand Company, 1968.
MLA-čujuhus (9. p.)Johnson, Cecil E. Social and Natural Biology: Selections from Contemporary Classics. D. Van Nostrand Company, 1968.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.