Biggar, P., James, J. C., & Rogers, C. More blocks, bears and building math skills. Kaplan School Supply Corp.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBiggar, Pat, Jeanne Cunningham James, और Craig Rogers. More Blocks, Bears and Building Math Skills. Lewisville, N.C.: Kaplan School Supply Corp.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBiggar, Pat, et al. More Blocks, Bears and Building Math Skills. Kaplan School Supply Corp.
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