APA
Hopkinson M. R., . (1925). Supreme art of bringing up children. London: George Allen & Unwin.
Chicago
Hopkinson M R, . 1925. Supreme art of bringing up children. London: George Allen & Unwin.
Harvard
Hopkinson M. R., . (1925). Supreme art of bringing up children. London: George Allen & Unwin.
MLA
Hopkinson M R, . Supreme art of bringing up children. London: George Allen & Unwin. 1925.