APA

Walker J., Great Trigonometrical Survey of India, . (1870). Account of the operations of the Great Trigonometrical Survey of India. Volume 1. The standards of measure and the base-lines, also an introductory account of the early operations of the survey during the period 1800-1830. Dehra Doon: Office of the Great Trigonometrical Surv.

Chicago

Walker J.T, Great Trigonometrical Survey of India, . 1870. Account of the operations of the Great Trigonometrical Survey of India. Volume 1. The standards of measure and the base-lines, also an introductory account of the early operations of the survey during the period 1800-1830. Dehra Doon: Office of the Great Trigonometrical Surv.

Harvard

Walker J., Great Trigonometrical Survey of India, . (1870). Account of the operations of the Great Trigonometrical Survey of India. Volume 1. The standards of measure and the base-lines, also an introductory account of the early operations of the survey during the period 1800-1830. Dehra Doon: Office of the Great Trigonometrical Surv.

MLA

Walker J.T, Great Trigonometrical Survey of India, . Account of the operations of the Great Trigonometrical Survey of India. Volume 1. The standards of measure and the base-lines, also an introductory account of the early operations of the survey during the period 1800-1830. Dehra Doon: Office of the Great Trigonometrical Surv. 1870.