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1.	Image from Google Jackets Image from OpenLibrary	Instrumental Methods Of by "Willard, Horbart H." Edition: Fifth Material type: Text; Format: print ; Literary form: Not fiction Publication details: New Delhi ; East West Pub. ; 1974 Availability: Items available for loan: IET Lucknow Central Library (1).
2.	Image from Google Jackets Image from OpenLibrary	Instrumental Methods Of by "Willard, Horbart H." Edition: Sixth Material type: Text; Format: print ; Literary form: Not fiction Publication details: New Delhi ; CBS Publication ; 1986 Availability: Items available for loan: IET Lucknow Central Library (1).
3.	Image from Google Jackets Image from OpenLibrary	Instrumental Methods Of by "Willard, Horbart H." Edition: Sixth Material type: Text; Format: print ; Literary form: Not fiction Publication details: New Delhi ; CBS Publication ; 1986 Availability: Items available for loan: IET Lucknow Central Library (1).

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