2 x 4=tango [i.e. Dos por cuatro es igual a tango]
By: Oscar del Priore ... [et al.] ; coordinación de Hilda Guerra.
Contributors: Priore, Oscar del; Guerra, Hilda.
Series: Colección Prisma 20 [i.e. veinte]
Publisher: Grupo Editor de Buenos Aires
Published: 1980
Place of publication: Buenos Aires
Language: spa
Number of pages: 125
Subjects: Tango (Dance); Musicians -- Argentina