1910 J. MacCuaig (title) Marriage Manual... A brief manual of instruction for those entering into marriage relationship.
1965 W. H. Masters & E. V. Johnson in J. Money iv. 109 If the suggestions of the marriage manuals are followed, the male develops the concept that he is to find the clitoris and stay with it.
1995 49 31 An Australian marriage manual of the 1940's..stated that..there was no connection between orgasm and ovulation.