Describes development of sexual characteristics in boys and girls, explains the physiology of intercourse, pregnancy, and birth, and discusses homosexuality, masturbation, contraception, and VD.
"Describes development of sexual characteristics in boys and girls, explains the physiology of intercourse, pregnancy, and birth, and discusses homosexuality, masturbation, contraception, and VD."@en
"Describes development of sexual characteristics in boys and girls, explains the physiology of intercourse, pregnancy, and birth, and discusses homosexuality, masturbation, contraception, and VD."
"Describes development of sexual characteristics in boys and girls; explains the physiology of intercourse, pregnancy, and birth; and discusses homosexuality, masturbation, contraception, and VD."
"Describes development of sexual characteristics in boys and girls; explains the physiology of intercourse, pregnancy, and birth; and discusses homosexuality, masturbation, contraception, and VD."@en
"Simply and explicitly written book about sex for junior and senior school students. 16PT."@en
"Describes development of sexual characteristics in boys and girls; explains the physiology of intercourse, pregnancy and birth; and discusses homosexuality, masturbation, contraception and VD."@en
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