As a general principle, the heading of the main entry of the book should be in the form in which the book itself is published; that is, if it is published under an autonym let the autonym be given, if under a pseudonym, then let the pseudonym be given, and if the book be anonymous, then let the fact be stated.

(I hope these hard words doe not fright your senses I sweare tis not our meaninge, gratious vmpeere, To ravish you with showe of bad prætenses)

Shylock: … Why Jessica, I say! Launcelot: Why, Jessica! Shylock: Who bids thee call? I do not bid thee call. Launcelot: Your worship was wont to tell me that I could do nothing without bidding.

The point is that SCUBA diving is not for rinky-dinks ; it is for well trained people only, and then only in the company of other experienced divers.