Christine Petersen

Pearls (Earth's Treasures)

Jade (Earth's Treasures)

Silver (Earth's Treasures)

The Wheelwright (Colonial People)

Ecstasy (Dangerous Drugs)

Caffeine and Energy Drinks (Dangerous Drugs)

LSD and Other Hallucinogens (Dangerous Drugs)

Preserving the Living Earth (Environment at Risk)

Frequently Asked Questions about Vaccines and Vaccinations (FAQ: Teen Life)

The Apothecary (Colonial People)

Miller (Colonial People)

The Tailor (Colonial People)

The Tanner (Colonial People)

The Glassblower (Colonial People)

Earth Science Projects for Kids Set (Earth Science Projects for Kids)

South Dakota (United States: Past & Present)

A Project Guide to Earth's Waters (Earth Science Projects for Kids)

A Project Guide to Mammals (Life Science Projects for Kids (Library))

Mighty Minerals (Checkboard Science Library. Rock On! a Look at Geology) (Rock On!: A Look at Geology) (Checkerboard Rock on)

Fantastic Fossils (Rock On!: A Look at Geology) (Checkerboard Rock on)

Groovy Gems (Rock On!: A Look at Geology) (Checkerboard Rock on)

Rockin' Rocks (Rock On!: A Look at Geology) (Checkerboard Rock on)

Surveyor (Colonial People)

South Dakota: Past and Present (United States: Past & Present)