Always Looking Up: Nancy Grace Roman, Astronomer (She Made History)
Kindle电子书
US$9.99
Laura Gehl is the author of popular picture books, board books, and early readers including One Big Pair of Underwear, My Pillow Keeps Moving, I Got a Chicken for My Birthday, the Peep and Egg series, and the Baby Scientist series. She lives in Chevy Chase, MD with her husband, four children, and large stash of dark chocolate.
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