• 4 Love
• 4 Sex
• 4 Sexual ethics
• 2 Mate selection
• 1 Birth control
• 1 Courtship
• 1 Family
• 1 Family law
• 1 Family size
• 1 Households
• 1 Sexual ethics for teenagers

• 4 Nicholson, William
• 1 Adero, George
• 1 Adero, Monica
• 1 Gould, Jennifer, university worker
• 1 Gould, Ron, university administrator
• 1 Kumar, Bina
• 1 Lamana, Vittorio

• 4 English

• 3 Italy
• 3 Kenya
• 2 Hungary
• 2 United States
• 1 Egypt
• 1 Japan

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