APA

Bloch P., . (1973). La-le-lo-lai; Puerto Rican music and its performers. New York: Plus Ultra Educational Publishers.

Chicago

Bloch Peter, . 1973. La-le-lo-lai; Puerto Rican music and its performers. New York: Plus Ultra Educational Publishers.

Harvard

Bloch P., . (1973). La-le-lo-lai; Puerto Rican music and its performers. New York: Plus Ultra Educational Publishers.

MLA

Bloch Peter, . La-le-lo-lai; Puerto Rican music and its performers. New York: Plus Ultra Educational Publishers. 1973.