Taxonomic Studies on the Megachilidae of North-Western India - Rajiv K. Gupta (Jodhpur Scientific Publishers ( India ), 1999)
Rajiv K. Gupta: Taxonomic Studies on the Megachilidae of North-Western India. Jodhpur. Scientific Publishers ( India ), 1999. 81-7233-204-2 Rs. 950.00--(595.79GUP)
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