Cita APA (7a ed.)
Key, H., & Key, M. Bolivian Indian tribes.
Cita Chicago Style (17a ed.)
Key, Harold, 与 Mary Key. Bolivian Indian Tribes.
Cita MLA (9a ed.)
Key, Harold, 与 Mary Key. Bolivian Indian Tribes.
警告：这些引文格式不一定是100％准确.