Gaya APA

STAKMAN, E.C., HARRAR, J. George. (1957). Principles of Plant Pathology . New York: The Ronald Press company.

Gaya Chicago

STAKMAN, E.C., HARRAR, J. George. Principles of Plant Pathology. New York: The Ronald Press company, 1957. .

Gaya MLA

STAKMAN, E.C., HARRAR, J. George. Principles of Plant Pathology. New York: The Ronald Press company, 1957. .

Gaya Turabian

STAKMAN, E.C., HARRAR, J. George. Principles of Plant Pathology. New York: The Ronald Press company, 1957. .