TY  - BOOK
AU  - Tupas, Sylvino V
AU  - Tupas, Sylvino V
TI  - Plane and spherical trigonometry for maritime students / sylvino V. Tupas
SN  - 9710306103
AV  - QA531 .T87 2004 
U1  - QA531 .T87 2004 
PY  - 2004///
CY  - Manila
PB  - Marta
KW  - Maritime Piracy-- International Law.trigonometry for maritime
ER  -