APA način citiranja (7. izdanje)

LEFFINGWELL RICHARD. (2019). BASIC MATH DOUBLING AND MUTIPLYING (2018 Ed.). HEINEMANN LIBRARY.

Čikaški stil citiranja (17. izdanje)

LEFFINGWELL RICHARD. BASIC MATH DOUBLING AND MUTIPLYING. 2018 Ed. MINNESOTA: HEINEMANN LIBRARY, 2019.

MLA način citiranja (9. izdanje)

LEFFINGWELL RICHARD. BASIC MATH DOUBLING AND MUTIPLYING. 2018 Ed. HEINEMANN LIBRARY, 2019.