APA-viite

Heidi Smith. (2008). How to pass numerical reasoning tests. Kogan Page India.

Chicago-tyylinen lähdeviittaus

Heidi Smith. How to Pass Numerical Reasoning Tests. New Delhi: Kogan Page India, 2008.

MLA-viite

Heidi Smith. How to Pass Numerical Reasoning Tests. Kogan Page India, 2008.