APA (7th ed.) Citation

Liebing, L., & Seidel, F. (1974). Low current pulsed ablation plasma thruster. DFVLR.

Chicago Style (17th ed.) Citation

Liebing, L., and F. Seidel. Low Current Pulsed Ablation Plasma Thruster. Köln: DFVLR, 1974.

MLA (9th ed.) Citation

Liebing, L., and F. Seidel. Low Current Pulsed Ablation Plasma Thruster. DFVLR, 1974.

Warning: These citations may not always be 100% accurate.