Gaya APA
Services, D, O, H, A, H. (2019).
Environmental Health Perspectives (Vol 127 Issue 12 Desember 2019).
Amerika Serikat:
Department of Health and Human Services.
Gaya MLA
Services, Department, Of, Health, And, Human.
"Environmental Health Perspectives".
Vol 127 Issue 12 Desember 2019
Amerika Serikat:
Department of Health and Human Services,
2019.
Text.