APA
Indian Standards Institution, . (1981). Indian standard guide for the use of quartz crystal units for frequency control and selection. Indian Standards Institution, New Delhi: .
Chicago
Indian Standards Institution, . 1981. Indian standard guide for the use of quartz crystal units for frequency control and selection. Indian Standards Institution, New Delhi: .
Harvard
Indian Standards Institution, . (1981). Indian standard guide for the use of quartz crystal units for frequency control and selection. Indian Standards Institution, New Delhi: .
MLA
Indian Standards Institution, . Indian standard guide for the use of quartz crystal units for frequency control and selection. Indian Standards Institution, New Delhi: . 1981.