APA (7th ed.) Citation

Hillis, W. E. (1987). Heartwood and tree exudates. Springer-Verlag.

Chicago Style (17th ed.) Citation

Hillis, W. E. Heartwood and Tree Exudates. Berlin ; New York: Springer-Verlag, 1987.

MLA (9th ed.) Citation

Hillis, W. E. Heartwood and Tree Exudates. Springer-Verlag, 1987.