Citação norma APA

MacFall, J. S., Johnson, G. A., & Kramer, P. J. (1990). Observation of a water-depletion region surrounding loblolly pine roots by magnetic resonance imaging.

Citação norma Chicago

MacFall, J S., G A. Johnson, and P J. Kramer. Observation of a Water-depletion Region Surrounding Loblolly Pine Roots By Magnetic Resonance Imaging. 1990.

Citação norma MLA

MacFall, J S., G A. Johnson, and P J. Kramer. Observation of a Water-depletion Region Surrounding Loblolly Pine Roots By Magnetic Resonance Imaging. 1990.

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