Cita APA (7a ed.)

Belloc, H. (1970). Economics for Helen. The St. George Educational Trust.

Cita Chicago Style (17a ed.)

Belloc, Hilaire. Economics for Helen. Liss, Hampshire: The St. George Educational Trust, 1970.

Cita MLA (9a ed.)

Belloc, Hilaire. Economics for Helen. The St. George Educational Trust, 1970.