Gainham, Sarah. To the opera ball / Sarah Gainham. - 1st ed. in the United States of America. - Garden City, N.Y. : Doubleday, 1977, c1975. - 424 p. ; 22 cm. ISBN: 0385121334 : $8.95 LCCN: 76002773 LC Class. No.: PZ4.G1425 PR6057.A34 / To4 Dewey Class. No.: 823/.9/14