Cita APA

Martin, P. S. 1. Taiga-Tundra and the full-glacial period in Chester County, Pennsylvania.

Citación estilo Chicago

Martin, Paul Schultz 1928-2010. Taiga-Tundra and the Full-glacial Period in Chester County, Pennsylvania.

Cita MLA

Martin, Paul Schultz 1928-2010. Taiga-Tundra and the Full-glacial Period in Chester County, Pennsylvania.