Italics rule of thumb:
If there is only one title in the citation, it will be italicized. When there are two, such as a journal publication title and an article title, the publication title is italicized (it has many articles in it).
Tips on alphabetizing in the list of References:
1) If a title begins with numerals, alphabetize the entry in the reference list as though the number were spelled out. Example: 7 would be alphabetized as if it were “Seven.”
2) If a title is the first element in your citation and it begins with an article (A, An, The), skip the article and alphabetize the first significant word of the title. Example: A Toast, would be placed after the name Stewart, B. A. in your reference list, not up where an “A” would be alphabetized.
Content adapted from University of Maryland Global Campus, "APA 7th Edition Citation Examples: Titles".