APA (7th ed.) Citation

Robertson, H. S. (1971). Nightfall in the sky: A song without words. Theodore Presser.

Chicago Style (17th ed.) Citation

Robertson, Hugh S. Nightfall in the Sky: A Song Without Words. Bryn Mawr, Pa: Theodore Presser, 1971.

MLA (9th ed.) Citation

Robertson, Hugh S. Nightfall in the Sky: A Song Without Words. Theodore Presser, 1971.