Dyfyniad APA

Duggins, P. (2007). Final countdown: NASA and the end of space shuttle program. University Press of Florida.

Dyfyniad Arddull Chicago

Duggins, Pat. Final Countdown: NASA and the End of Space Shuttle Program. Gainesville: University Press of Florida, 2007.

Dyfyniad MLA

Duggins, Pat. Final Countdown: NASA and the End of Space Shuttle Program. University Press of Florida, 2007.

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