APA (7th ed.) Citation

Harrington, H. J., & Leanza, A. F. (1957). Ordovician trilobites of Argentina. Univ. of Kansas Press.

Chicago Style (17th ed.) Citation

Harrington, Horacio J., and Armando F. Leanza. Ordovician Trilobites of Argentina. Lawrence: Univ. of Kansas Press, 1957.

MLA (9th ed.) Citation

Harrington, Horacio J., and Armando F. Leanza. Ordovician Trilobites of Argentina. Univ. of Kansas Press, 1957.

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