Peg Hall. (2002). "Whose Legs Are These?: A Look at Animal Legs - Kicking, Running, and Hopping (Whose Is It?)". Picture Window Books.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিPeg Hall. "Whose Legs Are These?: A Look at Animal Legs - Kicking, Running, and Hopping (Whose Is It?)". Picture Window Books, 2002.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিPeg Hall. "Whose Legs Are These?: A Look at Animal Legs - Kicking, Running, and Hopping (Whose Is It?)". Picture Window Books, 2002.
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