Cita APA

Elfner, L. E., Stuckey, R. L., & Melvin, R. W. (1973). A Guide to the literature of Ohio's natural areas. Columbus, Ohio: University.

Citación estilo Chicago

Elfner, Lynn Edward, Ronald L. Stuckey, y Ruth W. Melvin. A Guide to the Literature of Ohio's Natural Areas. Columbus, Ohio: University, 1973.

Cita MLA

Elfner, Lynn Edward, Ronald L. Stuckey, y Ruth W. Melvin. A Guide to the Literature of Ohio's Natural Areas. Columbus, Ohio: University, 1973.