APA (7th ed.) Citation

Velasquez, G. T. The blue-green algae of the Philippines.

Chicago Style (17th ed.) Citation

Velasquez, Gregorio T. The Blue-green Algae of the Philippines.

MLA (9th ed.) Citation

Velasquez, Gregorio T. The Blue-green Algae of the Philippines.

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