Paraphrasing or summarizing do not require page numbers, but they are encouraged.
Quotations always require the page number of the source.
Short Quotes
Short quotes (under 40 words): Short quotes should be placed within quotation marks in the body of your text.
Long Quotes
Long quotes (over 40 words): Are not placed in quotation marks. Rather, they are set aside in block text using a five-space margin for every line.
No Page Numbers
For non-paginated material, include the paragraph number when possible (Robinson, 1999, para. 7), or the abbreviation n.p. when not (Robinson, 1999, n.p.)