APA

Duncan A., .The practical surveyor's guide, containing the necessary information to make any person of common capacity, a finished land surveyor, without the aid of a teacher / by Andrew Duncan, land surveyor and civil engineer. Philadelphia : Henry Carey Baird, industrial publisher, N° 406 Walnut street, 1871: .

Chicago

Duncan Andrew, .The practical surveyor's guide, containing the necessary information to make any person of common capacity, a finished land surveyor, without the aid of a teacher / by Andrew Duncan, land surveyor and civil engineer. Philadelphia : Henry Carey Baird, industrial publisher, N° 406 Walnut street, 1871: .

Harvard

Duncan A., .The practical surveyor's guide, containing the necessary information to make any person of common capacity, a finished land surveyor, without the aid of a teacher / by Andrew Duncan, land surveyor and civil engineer. Philadelphia : Henry Carey Baird, industrial publisher, N° 406 Walnut street, 1871: .

MLA

Duncan Andrew, .Philadelphia : Henry Carey Baird, industrial publisher, N° 406 Walnut street, 1871: . .