Cita APA (7th ed.)

Harrison, L. C. (1935). Daylight, twilight, darkness, and time: Their distribution over the earth and their relationships to human affairs. Silver.

Cita Chicago (17th ed.)

Harrison, Lucia C. Daylight, Twilight, Darkness, and Time: Their Distribution over the Earth and Their Relationships to Human Affairs. New York: Silver, 1935.

Cita MLA (9th ed.)

Harrison, Lucia C. Daylight, Twilight, Darkness, and Time: Their Distribution over the Earth and Their Relationships to Human Affairs. Silver, 1935.