Gaya APA
W, D. (1998).
Magnetic Compass Deviation and Correction : A Manual of The Theory of The Deviation And Mechanical Correction of Magnetic Compasses in Ships (Third Edition).
Glasgow:
Glasgow Brown, Son & Ferguson LTD.
Gaya MLA
W, Denne.
"Magnetic Compass Deviation and Correction : A Manual of The Theory of The Deviation And Mechanical Correction of Magnetic Compasses in Ships".
Third Edition
Glasgow:
Glasgow Brown, Son & Ferguson LTD,
1998.
Text.