Quebral, F. C. (1988). What one should know about plant diseases. College of Agriculture, University of the Philippines at Los Banos.
Citace podle Chicago (17th ed.)Quebral, Florendo C. What One Should Know About Plant Diseases. College, Laguna: College of Agriculture, University of the Philippines at Los Banos, 1988.
Citace podle MLA (9th ed.)Quebral, Florendo C. What One Should Know About Plant Diseases. College of Agriculture, University of the Philippines at Los Banos, 1988.
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