APA-referens (7:e uppl.)

PITCHFORD, J. (1974). Population in economic growth. North-Holland.

Chicago-referens (17:e uppl.)

PITCHFORD, J.D. Population in Economic Growth. Amsterdam: North-Holland, 1974.

MLA-referens (9:e uppl.)

PITCHFORD, J.D. Population in Economic Growth. North-Holland, 1974.