On that subject, I think it's also important to back it up (as far as making it not seem cheap goes). Have multiple characters reference the same works; don't just make up a name and use it once. If it's supposed to be famous/intellectual, I've always found it to be wise to ingrain it into the culture of your setting. It also makes the over-all setting seem more real, because a majority of cultures have famous works of literature/authors or historical figures/wars.
Oh, also, forgot to reference that we talked about this topic (sort of) before:
I believe that one of the key aspects of writing survival horror is being realistic within your world. If your characters are human, then they have to eat and sleep. If there is a supernatural or technological aspect involved, try to address it early on so the reader is not wondering why the main character is still running at top speed even though they haven't eaten in two weeks. And do your research in terms of what is edible and for how long because even Twinkies have an expiration date.