APA (7th ed.) Citation

León, J. R. The Systematics of the Frogs of the Hyla Rubra Group in Middle America.

Chicago Style (17th ed.) Citation

León, Juan R. The Systematics of the Frogs of the Hyla Rubra Group in Middle America.

MLA (9th ed.) Citation

León, Juan R. The Systematics of the Frogs of the Hyla Rubra Group in Middle America.

Warning: These citations may not always be 100% accurate.