Cita APA (7a ed.)

Art Johnson. (2017). Guiding Children's Learning of Mathematics, 13th Edition (13th edition.). Cengage Learning.

Cita Chicago Style (17a ed.)

Art Johnson. Guiding Children's Learning of Mathematics, 13th Edition. 13th edition. United States of America: Cengage Learning, 2017.

Cita MLA (8a ed.)

Art Johnson. Guiding Children's Learning of Mathematics, 13th Edition. 13th edition. Cengage Learning, 2017.