DYER, W. (1977). YOUR ERRONEOUS ZONES. AVON BOOKS.
Cita Chicago (17th ed.)DYER, W.W. YOUR ERRONEOUS ZONES. NEW YORK: AVON BOOKS, 1977.
Cita MLA (9th ed.)DYER, W.W. YOUR ERRONEOUS ZONES. AVON BOOKS, 1977.
Atenció: Aquestes cites poden no estar 100% correctes.