Q. In APA, how do I deal with article or journal/book titles when I am discussing them in the text of the paper?

This, from p. 101 of the Publication Manual of the American Psychological Association, 6th edition.

4.15 Major Words in Titles and Headings

Capitalize

• Major words in titles of books and articles with the body of the paper. Conjunctions, articles, and short prepositions are not considered major words; however, capitalize all words of four letters or more. Capitalize all verbs (including linking verbs), nouns, adjectives, adverbs, and pronouns. When a capitalized word is a hyphenated compound, capitalize both words. Also, capitalize the first word after a colon or dash in a title.

 [examples]

 In her book History of Pathology

The criticism of the article, “Attitudes Toward Mental Health Workers”

“Ultrasonic Vocalizations Are Elicited From Rat Pups”

Therefore, discussing an article or journal in the text of a paper would look like this -

The article “Labrador Retrievers: Over-Rated and Over-Fed," published by White and Coates in The Journal of Dog Breed Research, argues convincingly that the Australian Shepherd, not the Labrador Retriever, is America’s dog, despite the misleading name.