Complete Marvel Comics Collection

How many issues are there of Shazam?
I am talking about Shazam the Captain Marvel series of DC comic books starting in 1973. The first run of captain marvel comic books by DC. I have many issues but want to know exactly how many run in this lot, so that I can complete it. Also, do you know of a website or book I can purchase or go to that tells me how many issues are in any volumes of compic books? I have a large collection and am wanting to complete many series.
Thanks for your help
The Answer thou seeketh, is thine….For a price.
Art thou prepared to wager thine very Soul for the knowledge thee lust for?
If so…Read On.
But Beware.
Mine knowing flows like milk from Satan’s Teat and is often just as bitter…
In the Year of the Christ 1973, the publisher most commonly referred to as DC, did indeed begin the series thou refereth to. The adventures of he who is called Captain Marvel were chronicled in this volume until the sixth month of the Year 1978, this encompasseth 35 individual issues, but beware, for a fraction of said issues were not wholly new creations, the publisher stooped to the lowly depths of incorporating reprinted matter from years long passed into the then current issues.
Were thou to delve into darkness and interrogate the oracle that inhabits the InterWeb known as comicbookdb.com, thou would surely find the answers that art thine Hearts Desire. The oracle can tell Strange and Wondrous tales of not only Captain Marvel, but also many other False Gods printed in sequential form.
The Teat Hath Spaketh!
1960s Marvel Comics Cartoons