AU or Apuntes Universitarios (University Notes) was a free monthly magazine of Colegio Mayor Chaminade, Madrid. Founded as Apuntes Universitarios in 1969, from issue #13 known as AU. Ceased in 1974. (fortunecity/pachi2)
AU was essentially a music magazine edited by students and people from radio Popular FM.
Below: Extra #23, April 1974. Thank you to Eric Galzi for the improved image.
ALBANIA (1) 
In ARABIC (3) 
BULGARIA (2) 
In CATALAN (3)
In CHINESE (10)
CROATIA (4) 
CZECH REPUBLIC (11)
DENMARK (10) 
In DUTCH (74)
In ENGLISH (567)
:
FINLAND (15)
In FRENCH (118)
In GALICIAN (1)
In GERMAN (130)
GREECE (19)
HUNGARY (2)
ICELAND (9)
ISRAEL (9)
In ITALIAN (81)
JAPAN (57)
NORWAY (44)
POLAND (14)
In PORTUGUESE (49)
ROMANIA (1)
RUSSIA (4)
In SERBIAN (4)
SLOVAKIA (1)
In SPANISH (173)
SWEDEN (28)
THAILAND (3)
TURKEY (16)