एपीए उद्धरण

Porwal, M. (1997). Remote sensing analysis of environmental resources for planning and development. APH publishing corporation.

शिकागो स्टाइल उद्धरण

Porwal, M.C. Remote Sensing Analysis of Environmental Resources for Planning and Development. New Delhi: APH publishing corporation, 1997.

एमएलए उद्धरण

Porwal, M.C. Remote Sensing Analysis of Environmental Resources for Planning and Development. APH publishing corporation, 1997.