Cita APA (7th ed.)

LEFFINGWELL RICHARD. (2019). BASIC MATH SHARING AND DIVIDING (2018 Ed.). HEINEMANN LIBRARY.

Cita Chicago (17th ed.)

LEFFINGWELL RICHARD. BASIC MATH SHARING AND DIVIDING. 2018 Ed. MINNESOTA: HEINEMANN LIBRARY, 2019.

Cita MLA (9th ed.)

LEFFINGWELL RICHARD. BASIC MATH SHARING AND DIVIDING. 2018 Ed. HEINEMANN LIBRARY, 2019.