Gaya APA

SHAKARIAN, D., Sherrill, J, A, E. (1977). The happiest people on earth (Cetakan Keempat). London: HODDER AND STOUGHTON.

Gaya MLA

SHAKARIAN, Demos., Sherrill, JOHN, And, Elizabeth. "The happiest people on earth". Cetakan Keempat London: HODDER AND STOUGHTON, 1977. Text.