APA

Tregaskis R., . (1961). X-15 diary: the story of America's first space ship. New York: Dutton.

Chicago

Tregaskis Richard, . 1961. X-15 diary: the story of America's first space ship. New York: Dutton.

Harvard

Tregaskis R., . (1961). X-15 diary: the story of America's first space ship. New York: Dutton.

MLA

Tregaskis Richard, . X-15 diary: the story of America's first space ship. New York: Dutton. 1961.