APA (7th ed.) Citation

(1969). Oblique ionospheric Radiowave Propagation at frequencies near the lowest usable high frequency. Technivision Services.

Chicago Style (17th ed.) Citation

Oblique Ionospheric Radiowave Propagation at Frequencies Near the Lowest Usable High Frequency. Slough: Technivision Services, 1969.

MLA (9th ed.) Citation

Oblique Ionospheric Radiowave Propagation at Frequencies Near the Lowest Usable High Frequency. Technivision Services, 1969.

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