H.C.H.C.FreieslebenH.C.H.C., Dutton's Navigation and Piloting. John C. Hill, Thomas F. Utegaard, Gerard Riordan. 771 + vi, illustrated, Chart No. 1 U.S.A. as suppl. U.S. Naval Institute Annapolis, Maryland, 1957 and 1958. $8. - Marine Navigation. Philip Van Horn Weems and Clarence V. Lee. 471 + x pp., illustrated. Annapolis, 1958. $7,50., „Journal of Navigation”, 12 (1), 1959, s. 111–113, DOI: 10.1017/s0373463300045999, ISSN0373-4633 [dostęp 2022-12-19].
worldcat.org
H.C.H.C.FreieslebenH.C.H.C., Dutton's Navigation and Piloting. John C. Hill, Thomas F. Utegaard, Gerard Riordan. 771 + vi, illustrated, Chart No. 1 U.S.A. as suppl. U.S. Naval Institute Annapolis, Maryland, 1957 and 1958. $8. - Marine Navigation. Philip Van Horn Weems and Clarence V. Lee. 471 + x pp., illustrated. Annapolis, 1958. $7,50., „Journal of Navigation”, 12 (1), 1959, s. 111–113, DOI: 10.1017/s0373463300045999, ISSN0373-4633 [dostęp 2022-12-19].