APA (7e ed.) Bronvermelding

Abrahamovich, A. H., Díaz, N. B., & Morrone, J. J. (2004). DISTRIBUTIONAL PATTERNS OF THE NEOTROPICAL AND ANDEAN SPECIES OF THE GENUS BOMBUS (HYMENOPTERA: APIDAE). Instituto de Ecología, A.C.

Chicago (17e ed.) Bronvermelding

Abrahamovich, Alberto H., Norma B. Díaz, en Juan J. Morrone. DISTRIBUTIONAL PATTERNS OF THE NEOTROPICAL AND ANDEAN SPECIES OF THE GENUS BOMBUS (HYMENOPTERA: APIDAE). Instituto de Ecología, A.C, 2004.

MLA (9e ed.) Bronvermelding

Abrahamovich, Alberto H., et al. DISTRIBUTIONAL PATTERNS OF THE NEOTROPICAL AND ANDEAN SPECIES OF THE GENUS BOMBUS (HYMENOPTERA: APIDAE). Instituto de Ecología, A.C, 2004.