एपीए उद्धरण

Gupta, A. Upkar's CSIR-UGC NET/JRF/SLET Physical Sciences: Paper I & II. Upkar prakashan.

शिकागो स्टाइल उद्धरण

Gupta, Anshul. Upkar's CSIR-UGC NET/JRF/SLET Physical Sciences: Paper I & II. Agra: Upkar prakashan.

एमएलए उद्धरण

Gupta, Anshul. Upkar's CSIR-UGC NET/JRF/SLET Physical Sciences: Paper I & II. Upkar prakashan.