Cita APA (7a ed.)

Caplan, F. (1977). The second twelve months of life a Kaleidoscope of growth. Perigee Books.

Cita Chicago Style (17a ed.)

Caplan, Frank. The Second Twelve Months of Life a Kaleidoscope of Growth. Perigee Books, 1977.

Cita MLA (9a ed.)

Caplan, Frank. The Second Twelve Months of Life a Kaleidoscope of Growth. Perigee Books, 1977.