Microwave engineers' handbook. Vol. 2 / Microwave engineers' handbook. Vol. 1 / Mining engineers' handbook. Vol. 2 / Mining engineers' handbook. Vol. 1 / Mining engineer's handbook. Vol. 1 / Microwave engineers' handbook. American civil engineers' handbook. Vol. 2 / Mining Engineers' Handbook. Vol. 1 / American civil engineers' handbook. Vol. 1 / Mechanical engineers' handbook.. vol 2 /