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"This book contains three lectures on some very important factors of life. These factors are health, food, and education." (PsycINFO Database Record (c) 2010 APA, all rights reserved).
Hygiene. --- Life. --- Food. --- Education.
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Social welfare methods --- Hygiene. Public health. Protection --- hygiëne --- gezondheidsleer
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School management --- Hygiene. Public health. Protection --- England
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