Gaya APA

Horst, H, V, D., Swanson, C, P. (1964). **Gas-discharge tubes . Netherlands: Netherlands: Philips Technical Library; 1964.

Gaya MLA

Horst, H.L., Van, Der., Swanson, Carl, P.. "**Gas-discharge tubes". Netherlands: Netherlands: Philips Technical Library; 1964, 1964. Text.