You've found the book! You've also found something else. Look at the titles of the books surrounding your book.
Play at the Center of the Curriculum
Multiple Perspectives on Play in Early Childhood Education
Play and Meaning in Early Childhood Education
Because Library of Congress call numbers arrange books by subject, books near each other will be about similar topics. Once you find a book on your topic, you may find something even better by browsing the shelves around it.