Although, as I am writing, I do remember in the begining of the Babylon book, the section about how Nimrod, and Marduk and the cross were all related that they quoted generously bible scholars by name.
I have seen them provide varying degrees of source information. Sometimes it is just the name. Sometimes it is the name and the title. Even sometimes, they give a full reference with page #'s. However, it seems very selective to me. Sometimes it's just "one writer says ..." and other times it is a full reference. I don't understand why they don't provide the full reference every time. Afterall, they refer to their magazine as a "journal." As for the "popular magazines" argument, I am trying to think off the top of my head if I have ever seen even a popular magazine provide a quote attributed to "one writer" or "one famous thinker" etc. Then again, I haven't read a popular magazine in a long time. I was just curious if the WT writers & readers actually think their quoting style is normal.