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Nan ER Hagland is a freelance writer of children's fiction and adult nonfiction who has taught preschool-aged children both professionally and on a volunteer basis.
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Hagland, N. Ocean-in-a-bottle made safe, easy. Early Childhood Educ J 6, 60 (1979). https://doi.org/10.1007/BF02367947
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DOI: https://doi.org/10.1007/BF02367947