APA ציטוט

Walker, J. C. (1969). Plant pathology (3.). Tata mc graw - hill publishing company limited.

Chicago Edition Citation

Walker, John Charles. Plant Pathology. 3. Bombay: Tata mc graw - hill publishing company limited, 1969.

ציטוט MLA

Walker, John Charles. Plant Pathology. 3. Tata mc graw - hill publishing company limited, 1969.