APA-viite (7. p.)
Thorpe, E., & Thorpe, S. (2014). The pearson general studies paper-ii 2014: For the civil services preliminary examination. Pearson.
Chicago-viite (17. p.)
Thorpe, Edgar, ja Showick Thorpe. The Pearson General Studies Paper-ii 2014: For the Civil Services Preliminary Examination. New Delhi: Pearson, 2014.
MLA-viite (9. p.)
Thorpe, Edgar, ja Showick Thorpe. The Pearson General Studies Paper-ii 2014: For the Civil Services Preliminary Examination. Pearson, 2014.
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