Branch, Stem and Collar Rot of Apple caused by Phytophthora Species of the 'cactorum Group'.

MLA

Sewell, G. W. F., and J. F. Wilson. “Branch, Stem and Collar Rot of Apple Caused by Phytophthora Species of the ‘Cactorum Group.’” Nature, vol. 200, no. 4912, Dec. 1963, p. 1229. EBSCOhost, https://doi.org/10.1038/2001229a0.

APA

Sewell, G. W. F., & Wilson, J. F. (1963). Branch, Stem and Collar Rot of Apple caused by Phytophthora Species of the “cactorum Group.” Nature, 200(4912), 1229. https://doi.org/10.1038/2001229a0

Chicago

Sewell, G. W. F., and J. F. Wilson. 1963. “Branch, Stem and Collar Rot of Apple Caused by Phytophthora Species of the ‘Cactorum Group.’” Nature 200 (4912): 1229. doi:10.1038/2001229a0.