McGraw-Hill Companies. McGraw-Hill School Division. National Geographic Society (U.S.). Educational Services & Moyer, R. Human body: Keeping healthy (Macmillan/McGraw-Hill edition.).
Παραπομπή σε μορφή Chicago (17η εκδ.)McGraw-Hill Companies. McGraw-Hill School Division. National Geographic Society (U.S.). Educational Services και Richard Moyer. Human Body: Keeping Healthy. Macmillan/McGraw-Hill edition.
Παραπομπή σε μορφή MLA (8th εκδ.)McGraw-Hill Companies. McGraw-Hill School Division. National Geographic Society (U.S.). Educational Services και Richard Moyer. Human Body: Keeping Healthy. Macmillan/McGraw-Hill edition.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.