Gaya APA

Wolf, A, D. (1987). Child Size Masterpieces For Steps 1,2,3 Matching Pairing and Sorting Level 3 Advanced . Hoboken, NJ: PT. Mandiri Jaya Abadi.

Gaya MLA

Wolf, Aline, D.. "Child Size Masterpieces For Steps 1,2,3 Matching Pairing and Sorting Level 3 Advanced". Hoboken, NJ: PT. Mandiri Jaya Abadi, 1987. Text.