APA

Smith C., Dufalla A., . (2010). Marta's Cupcake Problem. Pelham, New York: Benchmark Education Co.

Chicago

Smith Carrie, Dufalla Anita, . 2010. Marta's Cupcake Problem. Pelham, New York: Benchmark Education Co.

Harvard

Smith C., Dufalla A., . (2010). Marta's Cupcake Problem. Pelham, New York: Benchmark Education Co.

MLA

Smith Carrie, Dufalla Anita, . Marta's Cupcake Problem. Pelham, New York: Benchmark Education Co. 2010.