Parenthetical Citations (in-text) Sec. 18.3:
As long as you have an accurate Works Cited page, you follow this format: (author date, page number). (Bloom 1993, 135).
If there is no date, use n.d.: (Bloom n.d., 135).
If there are two authors with the same surname, use first initial of first name: (H. Bloom 1993, 135).
If there is no author, list the title of the work: (Great Trigonometrical Survey 1863, 26).
You may use abbreviations for common words (Sec. 6.4.5): (Natl. Res. Council 135).
Citing E-resources Sec. 17.1.10
Chicago Style requires URLs for e-resources. However, the style editors realize that URLs are frequently changing. They advise including as much information as possible for others to locate your sources. This includes adding a brief phrase to direct readers to parts of e-resources, especially webpages without page numbers.
Double or Single Spacing? Sec. A.1.3:
Most things should be double spaced. The exceptions are:
1) block quotations
2) titles and captions
3) table of contents, lists of figures, tables, and abbreviations
4) footnotes/ endnotes
5) Bibliographies/ Reference list
Spacing after punctuation marks.
There should be only 1 character space after punctuation marks. This includes the ends of sentences.
Chicago Manual of Style, 15th ed. Sec. 2.12