Betts, J. A.
High frequency communications by J. A. Betts - 1st ed. - London English Universities Press 1967 - [10], 98 p. ill. 23 cm. - Introductory science texts .
Includes bibliographies
Shortwave radio
623.84151 / BET/1967
High frequency communications by J. A. Betts - 1st ed. - London English Universities Press 1967 - [10], 98 p. ill. 23 cm. - Introductory science texts .
Includes bibliographies
Shortwave radio
623.84151 / BET/1967