Gould, S. J. (1977). Ontogeny and phylogeny. Belknap Press of Harvard University Press.
Chicago-čujuhus (17. p.)Gould, Stephen Jay. Ontogeny and Phylogeny. Cambridge: Belknap Press of Harvard University Press, 1977.
MLA-čujuhus (9. p.)Gould, Stephen Jay. Ontogeny and Phylogeny. Belknap Press of Harvard University Press, 1977.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.