APA
Philips Electronic Components and Materials Divison, . (1968). Circuits using low-drift transistor pairs : BCY87, BCY88, BCY89. [s.n.], [s.l.]: .
Chicago
Philips Electronic Components and Materials Divison, . 1968. Circuits using low-drift transistor pairs : BCY87, BCY88, BCY89. [s.n.], [s.l.]: .
Harvard
Philips Electronic Components and Materials Divison, . (1968). Circuits using low-drift transistor pairs : BCY87, BCY88, BCY89. [s.n.], [s.l.]: .
MLA
Philips Electronic Components and Materials Divison, . Circuits using low-drift transistor pairs : BCY87, BCY88, BCY89. [s.n.], [s.l.]: . 1968.