Cita APA (7th ed.)

Negro, J. J., De la Riva, M. J., & Bustamante, J. (1991). PATTERNS OF WINTER DISTRIBUTION AND ABUNDANCE OF LESSER KESTRELS FALCO-NAUMANNI IN SPAIN. Zenodo.

Cita Chicago (17th ed.)

Negro, J J., Manuel Jesús De la Riva, i Javier Bustamante. PATTERNS OF WINTER DISTRIBUTION AND ABUNDANCE OF LESSER KESTRELS FALCO-NAUMANNI IN SPAIN. Zenodo, 1991.

Cita MLA (9th ed.)

Negro, J J., et al. PATTERNS OF WINTER DISTRIBUTION AND ABUNDANCE OF LESSER KESTRELS FALCO-NAUMANNI IN SPAIN. Zenodo, 1991.