Terrestrial navigation 1 /
Ynion, Eugenio J.
Terrestrial navigation 1 / Eugenio J. Ynion. - Quezon City: Philippine Foundation for Maritime Teaching Aids, Inc. and the Author, c2001. - 143 pages : ill., b & w ; 23 cm.
9719237538
Terrestrial navigation.
FIL VK 555 / Y55 2001
Terrestrial navigation 1 / Eugenio J. Ynion. - Quezon City: Philippine Foundation for Maritime Teaching Aids, Inc. and the Author, c2001. - 143 pages : ill., b & w ; 23 cm.
9719237538
Terrestrial navigation.
FIL VK 555 / Y55 2001