Critical notes on the types of little-known species of neotropical birds.
Part II.
By C.E. Hellmayr.

APA Citation

Hellmayr, C. E. (Carl Eduard). (1913). Critical notes on the types of little-known species of neotropical birds: Part II. [London.

MLA Citation

Hellmayr, C. E. (Carl Eduard). Critical Notes On the Types of Little-known Species of Neotropical Birds: Part II. [London, 1913.

Warning: These citations may not always be complete (especially for serials).