Cita APA (7a ed.)

DAVID AND GLOVER, P. (2007). EASY LEARNING COUNTING PRACTICE AGE 5 - 7.

Cita Chicago Style (17a ed.)

DAVID AND GLOVER, PENNY. EASY LEARNING COUNTING PRACTICE AGE 5 - 7. 2007.

Cita MLA (9a ed.)

DAVID AND GLOVER, PENNY. EASY LEARNING COUNTING PRACTICE AGE 5 - 7. 2007.