APA
Rice K. J., Gordon D. R., Hardison J. L. & Welker J. M. (1993). Phenotypic variation in seedlings of a "keystone" tree species (Quercus douglasii): the interactive effects of acorn source and competitive environment. : Oecologia.
Chicago
Rice K J, Gordon D R, Hardison J L and Welker J M. 1993. Phenotypic variation in seedlings of a "keystone" tree species (Quercus douglasii): the interactive effects of acorn source and competitive environment. : Oecologia.
Harvard
Rice K. J., Gordon D. R., Hardison J. L. and Welker J. M. (1993). Phenotypic variation in seedlings of a "keystone" tree species (Quercus douglasii): the interactive effects of acorn source and competitive environment. : Oecologia.
MLA
Rice K J, Gordon D R, Hardison J L and Welker J M. Phenotypic variation in seedlings of a "keystone" tree species (Quercus douglasii): the interactive effects of acorn source and competitive environment. : Oecologia. 1993.