APA (7th ed.) Citation

Samelson, W. (1981). English as a second language, phase zero plus: Let's begin. Reston Publishing.

Chicago Style (17th ed.) Citation

Samelson, William. English as a Second Language, Phase Zero Plus: Let's Begin. Reston, Virginia: Reston Publishing, 1981.

MLA (9th ed.) Citation

Samelson, William. English as a Second Language, Phase Zero Plus: Let's Begin. Reston Publishing, 1981.