Krishnan D. S. Cengage Foundation Series General Mental Ability. Cengage Learing India Pvt. Ltd.
Citazione stile Chigago Style (17a edizione)Krishnan D. S. Cengage Foundation Series General Mental Ability. Delhi: Cengage Learing India Pvt. Ltd.
Citatione MLA (9a ed.)Krishnan D. S. Cengage Foundation Series General Mental Ability. Cengage Learing India Pvt. Ltd.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.