Walvoord B. E. (1988). Three steps to revising your writing for style, grammar, punctuation, and spelling. Scott, Foresman.
Чикаго маягийн жагсаалтWalvoord B. E. Three Steps to Revising Your Writing for Style, Grammar, Punctuation, and Spelling. Glenview, Ill: Scott, Foresman, 1988.
MLA ишлэлWalvoord B. E. Three Steps to Revising Your Writing for Style, Grammar, Punctuation, and Spelling. Scott, Foresman, 1988.
Warning: These citations may not always be 100% accurate.