
Ch. 1. http://books.google.com/books?id=AEk0AAAAIAAJ&q=%22The+more+people+have+studied+different+methods+of+bringing+up+children+the+more+they+have+come+to+the+conclusion+that+what+good+mothers+and+fathers+instinctively+feel+like+doing+for+their+babies+is+usually+best+after+all%22&pg=PA4#v=onepage
Dr. Spock's Baby and Child Care (1945)