Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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

Atenció: Aquestes cites poden no estar 100% correctes.