APA (7th ed.) Citation

Smith, P. S. a. P. One world for one earth saving the environment. Earthscan Publication Association with the Open University.

Chicago Style (17th ed.) Citation

Smith, Philip Sarre and Paul. One World for One Earth Saving the Environment. Earthscan Publication Association with the Open University.

MLA (8th ed.) Citation

Smith, Philip Sarre and Paul. One World for One Earth Saving the Environment. Earthscan Publication Association with the Open University.

Warning: These citations may not always be 100% accurate.