APA način citiranja (7. izdanje)

Spellenberg, R. (1990). Note on the type, identification and type locality of Quercus oblongifolia var. pallidinervis (Fagaceae) in Chihuahua. Instituto de Ecología, A.C.

Čikaški stil citiranja (17. izdanje)

Spellenberg, Richard. Note on the Type, Identification and Type Locality of Quercus Oblongifolia Var. Pallidinervis (Fagaceae) in Chihuahua. Instituto de Ecología, A.C, 1990.

MLA način citiranja (9. izdanje)

Spellenberg, Richard. Note on the Type, Identification and Type Locality of Quercus Oblongifolia Var. Pallidinervis (Fagaceae) in Chihuahua. Instituto de Ecología, A.C, 1990.