आधुनिक परिवहन : डॉ. शिवध्यान सिंह चौहान द्वारा हिंदी पीडीऍफ़ पुस्तक – सामाजिक | Aadhunik Parivahan : by Dr. Shiv Dhyan Singh Chauhan Hindi PDF Book – Social (Samajik)
Pustak Ka Vivaran : Uttar – Prastar yug se Manushy vas-phool ki Jhopadiyan bana kar rahane laga tatha shikar ke Atirikt Machhali marana, pashu palan aur krshi-Farm bhi Seekh gaya. Vah Patte, Bilkul aur pashu charm aadi ke vastra bhi dharana karane laga. Is Bhanti uski Aavashyakata badi aur sath hi uski Aavagaman ka kshetra bhi bata. Atev usne apni Pagadandiyan ko Samatal aur Suvidhajanak margon………
Description about eBook : From the post-stone age, man started living by making huts of habitat and besides hunting, he also learned fishing, animal husbandry and agriculture-farm. He also started imagining clothes made of leaves, beaks and animal skin etc. In this way his need is huge and at the same time his area of movement is also divided. So he made his trails flat and convenient routes………
