APA (7th ed.) Citation

Kittler, R. The relation of sky types to relative sunshine duration.

Chicago Style (17th ed.) Citation

Kittler, Richard. The Relation of Sky Types to Relative Sunshine Duration.

MLA (9th ed.) Citation

Kittler, Richard. The Relation of Sky Types to Relative Sunshine Duration.

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