@book{66932,
	author = {O'Leary, Jacinta and Livett, Jill},
	title = {Nelson Product Design and Technology: VCE Units 1-4},
	publisher = {Cengage Learning,},
	year = {2012.},
	address = {Australia,},
	edition = {2nd edition.},
	url = {https://books.google.com.pk/books?id=R3jAMQEACAAJ&dq=nelson+product+design+and+technology&hl=en&sa=X&redir_esc=y}
}