APA (7th ed.) Citation

Smith, N., & Clark, B. (1946). Into Siam: Underground kingdom. Bobbs-Merrill.

Chicago Style (17th ed.) Citation

Smith, Nicol, and Blake Clark. Into Siam: Underground Kingdom. Indianapolis u.a: Bobbs-Merrill, 1946.

MLA (9th ed.) Citation

Smith, Nicol, and Blake Clark. Into Siam: Underground Kingdom. Bobbs-Merrill, 1946.

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