Weaver, R. J. (1972). Plant growth substances in agriculture. W. H. Freeman.
Chicago-čujuhus (17. p.)Weaver, Robert J. Plant Growth Substances in Agriculture. San Francisco: W. H. Freeman, 1972.
MLA-čujuhus (9. p.)Weaver, Robert J. Plant Growth Substances in Agriculture. W. H. Freeman, 1972.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.