APA
Punjab Agricultural University, . (1989). Package Of Practicles For Crops Of Punjab: Kharif 1989. Ludhiana: Govt. Of Punjab.
Chicago
Punjab Agricultural University, . 1989. Package Of Practicles For Crops Of Punjab: Kharif 1989. Ludhiana: Govt. Of Punjab.
Harvard
Punjab Agricultural University, . (1989). Package Of Practicles For Crops Of Punjab: Kharif 1989. Ludhiana: Govt. Of Punjab.
MLA
Punjab Agricultural University, . Package Of Practicles For Crops Of Punjab: Kharif 1989. Ludhiana: Govt. Of Punjab. 1989.