APA (7th ed.) Citation

Langer, R. H. M. (1979). How grasses grow (2d ed.). University Park Press.

Chicago Style (17th ed.) Citation

Langer, R. H. M. How Grasses Grow. 2d ed. Baltimore: University Park Press, 1979.

MLA (9th ed.) Citation

Langer, R. H. M. How Grasses Grow. 2d ed. University Park Press, 1979.