Gaya APA

ASTM., . (1978). 1978 annual book of ASTM standard part 39. Electrical insulation - test methods: solids and solidifying fluids. (1978). : Philadelphia : ASTM.,.

Gaya MLA

ASTM., . "1978 annual book of ASTM standard part 39. Electrical insulation - test methods: solids and solidifying fluids.". 1978 : Philadelphia : ASTM.,, 1978. Text.