APA (7th ed.) Citation

Marek, G. R. (1971). A front seat at the opera. Books for Libraries Press.

Chicago Style (17th ed.) Citation

Marek, George R. A Front Seat at the Opera. Freeport, N.Y.: Books for Libraries Press, 1971.

MLA (9th ed.) Citation

Marek, George R. A Front Seat at the Opera. Books for Libraries Press, 1971.