Cita APA (7th ed.)

SCHUMACHER E F. (1979). GOOD WORK. ABACUS PRESS.

Cita Chicago (17th ed.)

SCHUMACHER E F. GOOD WORK. LONDON: ABACUS PRESS, 1979.

Cita MLA (9th ed.)

SCHUMACHER E F. GOOD WORK. ABACUS PRESS, 1979.