APA Style

Robert$h6, Y, ,, A., O.$h8, S, ,, A. (1998). Nitty gritty grammar: sentence essentials for writers . : Cambridge University Press.

MLA Style

Robert$h6, Young, ,, A.., O.$h8, Strauch, ,, Ann. "Nitty gritty grammar: sentence essentials for writers". : Cambridge University Press, 1998. Text.