Louis Glanzman: 4 books

"Stand by to reduce thrust on main drive rockets!" The tall, broad–shouldered officer in the uniform of the Solar Guard snapped out the order as he watched the telescanner screen and saw the Western Hemisphere of Earth looming larger and larger

A harsh, bull–throated roar thundered over the platform of the monorail station at Space Academy and suddenly the lively chatter and laughter of more than a hundred boys was stilled. Tumbling out of the gleaming monorail cars, they froze to quick attention, their eyes turned to the main exit ramp

A metallic voice rasped over the loud–speakers and echoed through the lofty marble and aluminum concourse of the New Chicago Monorail Terminal. "Atom City express on Track Seven! Space Academy first stop! Passengers for Space Academy will please take seats in the first six cars!