National Geographic Magazine 1957-08, August
National Geographic Magazine 1965-04, April
Iceland Magazine April 2015
National Geographic Magazine 1968-01, January
National Geographic Magazine 1959-05, May
National Geographic Magazine 1947-10, October
National Geographic Italia – Aprile 2015
National Geographic Magazine 1963-03, March
Discover Britain – April-May 2015
National Geographic Magazine 1946-03, March
National Geographic Nederland-Belgie – April 2015
National Geographic Magazine 1954-09, September
National Geographic Magazine 1968-11, November
National Geographic Magazine 1969-04, April
National Geographic Germany – April 2015
National Geographic France N 187 – Avril 2015
National Geographic Magazine 1948-05, May
National Geographic Hors-Serie N 17 Collection 2015
National Geographic Magazine 1961-02, February
National Geographic USA – April 2015
National Geographic Magazine 1959-08, August
National Geographic Magazine 1962-01, January
National Geographic Magazine 1964-08, August
National Geographic Colombia – Marzo 2015
National Geographic Magazine 1945-12, December
National Geographic Magazine 1949-11, November
National Geographic Magazine 1952-06, June
National Geographic Magazine 1955-09, September
National Geographic Magazine 1948-11, November
National Geographic Magazine 1948-02, February
National Geographic Magazine 1956-05, May
National Geographic Magazine 1964-02, February
National Geographic Magazine 1966-03, March
National Geographic Traveler Nederland Nr. 2, 2015
National Geographic Magazine 1961-10, October
National Geographic Magazine 1958-03, March
National Geographic Magazine 1957-03, March
National Geographic Magazine 1956-08, August
National Geographic Magazine 1951-03, March
National Geographic Magazine 1947-05, May
