APA

Schmid J. M., Mata S. A., Olsen W. K. & Vigil D. D. (1993). Phloem temperatures in mountain pine beetle infested ponderosa pine. Washington: Intermountain Research Station.

Chicago

Schmid J M, Mata S A, Olsen W K and Vigil D D. 1993. Phloem temperatures in mountain pine beetle infested ponderosa pine. Washington: Intermountain Research Station.

Harvard

Schmid J. M., Mata S. A., Olsen W. K. and Vigil D. D. (1993). Phloem temperatures in mountain pine beetle infested ponderosa pine. Washington: Intermountain Research Station.

MLA

Schmid J M, Mata S A, Olsen W K and Vigil D D. Phloem temperatures in mountain pine beetle infested ponderosa pine. Washington: Intermountain Research Station. 1993.