I know that this font is Lubalin Graph But where can I get the alternate version used in the "A"?

ITC Lubalin Graph Extra Light  Suggérée par rocamaco 

Rocamaco , tu n'as pas lu la question.

Yes, and I give the answer with the correct link that you gave here: http://www.dafont.com/forum/read/7378/whats-this-font, where everybody can see the alternate "A", which is asked by the poster (not in the link he give below: http://new.myfonts.com/fonts/linotype/itc-lubalin-graph/)...

Ce n'est pas moi mais Rodolphe qui a édité le 'link': Edited on Mar 01, 2011 at 14:53 by Rodolphe

Les alternates était disponible seulement en 'Phototype'.

http://cjoint.com/11jn/AFDtG3hsYy3_Graph.jpg

Modified Lubalin. Take "Æ" symbol and "cut" the "E" part.

Thanks! I thought there was an alternate version of Lubalin Graph because it is based off of Avant Garde which has an alt version with that "A" in it.

Yup, but there are only some alternates, and not all letters. Take a look at Claude's pic. You will see "AE", "AO", "RA", "EA", "GA" and a few more. You will not find "AS" and "AC" that were used in this image And AFAIK, Avant Garde has the same alternates.

It's not based in Avant Garde, else they share designer: Herb Lubalin (New York graphic designer, dean of American art directors since World War II, type designer since 1970 and founder of ITC)...