TY - BOOK TI - Childcraft: our earth T2 - How and why library SN - 9780716622680 U1 - 551 PY - 1979/// CY - Chicago, IL PB - World Book, Inc N2 - Vol. 1--Poems and Rhymes, Vol. 2-Once Upon a Time, Vol. 3--Art Around Us, Vol. 4--The World of Animals, Vol. 5--The World of Plants, Vol. 6--Our Earth, Vol. 7--The Universe, Vol. 8--How Does It Happen?, Vol. 9--How Things Work, Vol. 10--Shapes and Numbers, Vol. 11--About You, Vol. 12--Who We Are, Vol. 13--See the World, Vol. 14--Celebrate!, Vol. 15--Guide and Index ER -