Los peces del Rio Magdalena.
Subtitle: A field book of Magdalena fishes.
Publisher: Editorial El Grafico
Published: 1948
Place of publication: Bogota
Language: spa
Number of pages: 214
Subjects: Fish -- Colombia
Notes: At head of title: Republica de Colombia.  Pontificia Universidad Catolica Javeriana.  Facultad de Filosofia y Letras.

Thesis Ph.D. - Bogota.

"Bibliografia": p. xvi-xxiii.