LeVay, Simon. <br/><br/>
Gay, straight, and the reason why :  the science of sexual orientation / 
Simon LeVay. 
 - Oxford ;  New York :  Oxford University Press,  2011. 
 - xvii, 412 p. :  ill. ;  22 cm. 
<br/><br/>Includes bibliographical references (p. 309-392) and indexes. 
<br/><br/>What is sexual orientation? -- Why we need biology -- The outline of a theory -- Childhood -- Characteristics of gay and straight adults -- The role of sex hormones -- The role of genes -- The brain -- The body -- The older-brother effect. 
<br/><br/><label>ISBN: </label>9780199737673 (acidfree paper) 
<br/><br/><label>LCCN: </label>2009049210 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sexual orientation.<br/>Sex (Psychology)<br/>Sex (Biology)
<br/><br/><label>LC Class. No.: </label>BF692  / .L476 2011 
<br/><br/><label>Dewey Class. No.: </label>155.3