APA (7th ed.) Citation

National geographic research [Natl Geogr Res] NLMUID: 9425974.

Chicago Style (17th ed.) Citation

National Geographic Research [Natl Geogr Res] NLMUID: 9425974.

MLA (9th ed.) Citation

National Geographic Research [Natl Geogr Res] NLMUID: 9425974.

Warning: These citations may not always be 100% accurate.