APA (7th ed.) Citation

Engle. The X-15 Rocket Plane. University of Nebraska Press.

Chicago Style (17th ed.) Citation

Engle. The X-15 Rocket Plane. University of Nebraska Press.

MLA (8th ed.) Citation

Engle. The X-15 Rocket Plane. University of Nebraska Press.

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