Citazione Stile APA (7a Edizione)
HOUCK, C., & BILLINGSLEY, B. (1990). WRITTEN EXPRESSION OF STUDENTS WITH AND WITHOUT LEARNING DISABILITIES: DIFFERENCES ACROSS THE GRADES.
Citazione stile Chigago Style (17a edizione)
HOUCK, C.K, e B.S BILLINGSLEY. WRITTEN EXPRESSION OF STUDENTS WITH AND WITHOUT LEARNING DISABILITIES: DIFFERENCES ACROSS THE GRADES. 1990.
Citatione MLA (9a ed.)
HOUCK, C.K, e B.S BILLINGSLEY. WRITTEN EXPRESSION OF STUDENTS WITH AND WITHOUT LEARNING DISABILITIES: DIFFERENCES ACROSS THE GRADES. 1990.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.