| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 1995 | 978-0-9643420-1-9 | J. Martin Young | How to Have a Boy: A Step-By-Step Guide to Scientifically Maximize Your Chances of Conceiving a Son |
| '' | 978-0-9643420-2-6 | '' | How to Have a Girl: A Step-By-Step Guide to Scientifically Maximize Your Chances of Conceiving a Daughter |