Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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