WERNSTEDT, F. L; SPENCER, J. E. 1978. The Philippine Island World: A Physical, Cultural and Regional Geography. 1. vydanie. Berkeley: University of California Press.
Citáce podľa APA (7th ed.)Wernstedt, F. L., & Spencer, J. E. (1978). The Philippine Island World: A Physical, Cultural and Regional Geography (1. vydanie.). University of California Press.
Citácia podle Chicago (17th ed.)Wernstedt, Frederic L., a J. E. Spencer. The Philippine Island World: A Physical, Cultural and Regional Geography. 1. vydanie. Berkeley: University of California Press, 1978.
Citácia podľa MLA (8th ed.)Wernstedt, Frederic L., a J. E. Spencer. The Philippine Island World: A Physical, Cultural and Regional Geography. 1. vydanie. University of California Press, 1978.
