APA (7th ed.) Citation

Doyle, J. (1901). Magnetical dip and declination in the Philippine Islands: Brief notice of the same. Observatory Print. Off.

Chicago Style (17th ed.) Citation

Doyle, John. Magnetical Dip and Declination in the Philippine Islands: Brief Notice of the Same. Manila: Observatory Print. Off, 1901.

MLA (9th ed.) Citation

Doyle, John. Magnetical Dip and Declination in the Philippine Islands: Brief Notice of the Same. Observatory Print. Off, 1901.

Warning: These citations may not always be 100% accurate.