@book{MastersJohnson, author = {Masters, W. H. and Johnson, V. E.}, title = {Human sexual response, Boston (Little, Brown and Company) 1966.}, language = {en} } @book{MastersJohnson, author = {Masters, W. H. and Johnson, V. E.}, title = {Human sexual inadequacy, Boston (Little, Brown \& Company) 1970.}, language = {en} }