APA (7th ed.) Citation

Ambrose, S. E., & Abell, S. (1998). Lewis & Clark: Voyage of discovery. National Geographic Society.

Chicago Style (17th ed.) Citation

Ambrose, Stephen E., and Sam Abell. Lewis & Clark: Voyage of Discovery. [Washington, D.C.]: National Geographic Society, 1998.

MLA (9th ed.) Citation

Ambrose, Stephen E., and Sam Abell. Lewis & Clark: Voyage of Discovery. National Geographic Society, 1998.