Gaya APA

Sloan,- Goldberg Holly. (2013). Counting by 7s . amerika: Piccadilly Press.

Gaya Chicago

Sloan,- Goldberg Holly. Counting by 7s. amerika: Piccadilly Press, 2013. Text.

Gaya MLA

Sloan,- Goldberg Holly. Counting by 7s. amerika: Piccadilly Press, 2013. Text.

Gaya Turabian

Sloan,- Goldberg Holly. Counting by 7s. amerika: Piccadilly Press, 2013. Print.