Hunter, M. W., II, & Bernardo, J. V. (1966). Thrust into space. New York: Holt, Rinehart and Winston.
Παραπομπή Chicago StyleHunter, Maxwell W., II, and James V. Bernardo. Thrust Into Space. New York: Holt, Rinehart and Winston, 1966.
Παραπομπή MLAHunter, Maxwell W., II, and James V. Bernardo. Thrust Into Space. New York: Holt, Rinehart and Winston, 1966.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.