SINGH, S. W. (2010). Identification of weeds and their control measures. Tanay Sharma Scientific Publishers.
Παραπομπή σε μορφή Chicago (17η εκδ.)SINGH, Surjit Walia. Identification of Weeds and Their Control Measures. Tanay Sharma Scientific Publishers, 2010.
Παραπομπή σε μορφή MLA (9th εκδ.)SINGH, Surjit Walia. Identification of Weeds and Their Control Measures. Tanay Sharma Scientific Publishers, 2010.
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