Astronauts - Biography. - United States

Sigma 7the six Mercury orbits of Walter M. Schirra, Jr. / by: (Electronic resources)

Faith 7L. Gordon Cooper, Jr., and the final Mercury Mission / by: (Electronic resources)

Popular Science.

Extraterrestrial Physics, Space Sciences.

United States.

Astronauts

Cooper, Gordon,

Space flights.

Aerospace Technology and Astronautics.

History of Science.

Schirra, Wally.

Popular Science in Astronomy.