Gaya APA

Agency, N, I, A, M. (1999). List of Lights, Radio Aids, and Fog Signals 1999 . USA: Penerbit National Imagery and Mapping Agency.

Gaya MLA

Agency, National, Imagery, And, Mapping. "List of Lights, Radio Aids, and Fog Signals 1999". USA: Penerbit National Imagery and Mapping Agency, 1999. Text.