APA (7th ed.) Citation

Sheeler, W. D. (1990). Welcome to english: Texbook. English Language Services.

Chicago Style (17th ed.) Citation

Sheeler, Willard D. Welcome to English: Texbook. English Language Services, 1990.

MLA (8th ed.) Citation

Sheeler, Willard D. Welcome to English: Texbook. English Language Services, 1990.

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