APA (7th ed.) Citation

D, S. W. (1992). Welcome to English ( Textbook 1 ). English Language Service,INC.

Chicago Style (17th ed.) Citation

D, Sheeler Willard. Welcome to English ( Textbook 1 ). English Language Service,INC, 1992.

MLA (8th ed.) Citation

D, Sheeler Willard. Welcome to English ( Textbook 1 ). English Language Service,INC, 1992.

Warning: These citations may not always be 100% accurate.