Gaya APA

Haggard, R, E, H, ;, D, W, P, ;, A, Q. (1977). Mastering American English: a handbook - workbook of essentials (cet. 42). : .

Gaya MLA

Haggard, Rebecca, E., Hayden, ;, Dorothy, W., Pilgrim, ;, Aurora, Quiros. "Mastering American English: a handbook - workbook of essentials". cet. 42 : , 1977. .