APA-viite

Thorpe, E., & Thorpe, S. (2018). General studies for civil services preliminary examination paper I - 6 vol. Pearson.

Chicago-tyylinen lähdeviittaus

Thorpe, Edgar, ja Showick Thorpe. General Studies for Civil Services Preliminary Examination Paper I - 6 Vol. Noida: Pearson, 2018.

MLA-viite

Thorpe, Edgar, ja Showick Thorpe. General Studies for Civil Services Preliminary Examination Paper I - 6 Vol. Pearson, 2018.