APA (7th ed.) Citation

Drum, W. M. (1905). The Pioneer forecasters of hurricanes. Obsertory of Belén.

Chicago Style (17th ed.) Citation

Drum, Walter M. The Pioneer Forecasters of Hurricanes. Havana: Obsertory of Belén, 1905.

MLA (9th ed.) Citation

Drum, Walter M. The Pioneer Forecasters of Hurricanes. Obsertory of Belén, 1905.

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