Smith, H. M. (1944). Snakes of the Hoogstraal Expeditions to northern Mexico. Zenodo.
Čikaški stil citiranja (17. izdanje)Smith, Hobart M. Snakes of the Hoogstraal Expeditions to Northern Mexico. Zenodo, 1944.
MLA način citiranja (9. izdanje)Smith, Hobart M. Snakes of the Hoogstraal Expeditions to Northern Mexico. Zenodo, 1944.
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