Cita APA (7th ed.)

(1998). Ladders to literacy: A kindergarten activity book / by Rollanda E. O'Connor, Angela Notari-Syverson, Patricia F. Vadasy.

Cita Chicago (17th ed.)

Ladders to Literacy: A Kindergarten Activity Book / by Rollanda E. O'Connor, Angela Notari-Syverson, Patricia F. Vadasy. 1998.

Cita MLA (9th ed.)

Ladders to Literacy: A Kindergarten Activity Book / by Rollanda E. O'Connor, Angela Notari-Syverson, Patricia F. Vadasy. 1998.