APA (7th ed.) Citation

Tropical Prediction Center/National Hurricane Center (U.S.) & Hydrometeorological Prediction Center (U.S.). Unified surface analysis manual.

Chicago Style (17th ed.) Citation

Tropical Prediction Center/National Hurricane Center (U.S.) and Hydrometeorological Prediction Center (U.S.). Unified Surface Analysis Manual.

MLA (9th ed.) Citation

Tropical Prediction Center/National Hurricane Center (U.S.) and Hydrometeorological Prediction Center (U.S.). Unified Surface Analysis Manual.

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