Crawley, Lawrence Q. <br/><br/>
Reproduction, sex, and preparation for marriage 
[by] Lawrence Q. Crawley [and others] 
 - 2d ed. 
 - Englewood Cliffs, N.J.,  Prentice-Hall  [1973] 
<br/><br/>Bibliography: p. 224-240. 
<br/><br/><label>ISBN: </label>0137739370   
<br/><br/><label>LCCN: </label>72010190 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Reproduction.<br/>Sex -- Zambia--Sex -- Zambia<br/>Marriage.
<br/><br/><label>LC Class. No.: </label>QP251  / .C92 1973 
<br/><br/><label>Dewey Class. No.: </label>612.6