APA (7 ম সংস্করণ) উদ্ধৃতি

Shekhar, S. (2017). Environmental impact assessment (EIA) and environmental clearance (EC) at ONGC, western onshore basin, vadodara. Forest Research Institute.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Shekhar, Shashank. Environmental Impact Assessment (EIA) and Environmental Clearance (EC) at ONGC, Western Onshore Basin, Vadodara. Dehradun: Forest Research Institute, 2017.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Shekhar, Shashank. Environmental Impact Assessment (EIA) and Environmental Clearance (EC) at ONGC, Western Onshore Basin, Vadodara. Forest Research Institute, 2017.