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Boston and New York, Houghton Mifflin company, 1919.
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London : British Society for the Study of Sex Psychology, 1921.
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London : The Walter Scott Publishing Co., Ltd., [1914]
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4.
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London : Walter Scott, Ltd., 1898.
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5.
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Boston ; New York : Houghton Mifflin Company, 1919. Guildford, England : Billing and Sons, Limited, printers, [1919]
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New York : George H. Doran Company, [1922] ©1922
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London : British Society for the Study of Sex Psychology, 1918.
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London : The Walter Scott Publishing Co., Ltd., 1904.
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9.
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New York : Dover Publications, c2003.
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London : Dent ; New York : Dutton, 1946, 1970 printing.
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