APA (7th ed.) Citation

Astle, C. (1979). How good is your english?: Test yourself and see! Elliot Right Way Books.

Chicago Style (17th ed.) Citation

Astle, Cedric. How Good Is Your English?: Test Yourself and See! U.K.: Elliot Right Way Books, 1979.

MLA (9th ed.) Citation

Astle, Cedric. How Good Is Your English?: Test Yourself and See! Elliot Right Way Books, 1979.