Sorry - I know I should know this but I don't!

1) I have a book title which starts with a numer (60). Everywhere I look this is written as a number not "Sixty" - do I write it as a number in the bibliography?

2) I'm still confused about what year's date goes with a book. Is it the latest edition's year? Or the original year + 3 ed or whatever? Do reprints count?

Thanks for any help and sorry for being dim. :$

(1) You start with the number.
(2) Reprints don't count but editions do. You want to cite the edition that you've been working from, rather than the latest.
I.e. you're citing from page 5 in the 57th edition of Why the Human Race Is Doomed, published in 1963. The most up to date version is the 90th edition, but you effectively ignore this (though it's good practice to cite from up-to-date versions in case things have changed, like the end of the Cold War).
So your reference in your bibliography should go (assuming you're using the Harvard system)...

Morbid, I. A. M. (1963) Why the Human Race is Doomed (57th Ed.), Mars: Galactic University Press.

In the the main text:

Morbid (1963:5)

HTH

Thanks! Very helpful!