Dyfyniad APA

Thorpe, E. (2017). General studies for civil services preliminary examination paper-I: Geography and environmental ecology. Pearson India Education Services Pvt Ltd.

Dyfyniad Arddull Chicago

Thorpe, Edgar. General Studies for Civil Services Preliminary Examination Paper-I: Geography and Environmental Ecology. Noida, Uttar Pradesh: Pearson India Education Services Pvt Ltd, 2017.

Dyfyniad MLA

Thorpe, Edgar. General Studies for Civil Services Preliminary Examination Paper-I: Geography and Environmental Ecology. Pearson India Education Services Pvt Ltd, 2017.

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