Citação norma APA

O'Brien, R. A., & Conner, R. C. (1991). Forest statistics for land outside national forests in eastern Montana, 1989. Intermountain Research Station.

Citação norma Chicago

O'Brien, Renee A., and Roger C. Conner. Forest Statistics for Land Outside National Forests in Eastern Montana, 1989. Ogden: Intermountain Research Station, 1991.

Citação norma MLA

O'Brien, Renee A., and Roger C. Conner. Forest Statistics for Land Outside National Forests in Eastern Montana, 1989. Intermountain Research Station, 1991.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.