National Geographic Magazine 1973-06, June
National Geographic Magazine 1976-09, September
National Geographic Magazine 1983-12, December
National Geographic Magazine 1973-07, July
National Geographic Magazine 1984-03, March
National Geographic Magazine 1984-07, July
National Geographic Magazine 1989-02, February
National Geographic Magazine 1973-08, August
National Geographic Magazine 1983-10, October
National Geographic 1993-06, June
National Geographic Magazine 1971-10, October
National Geographic 1995-07, July
National Geographic Magazine 1989-05, May
Asian Geographic JUNIOR – Issue 1, 2014
National Geographic 1996-09, September
ASIAN Geographic – Issue 1, 2014
Planeta Desconocido N 2 – Diciembre de 2013
National Geographic Magazine 1971-05, May
National Geographic Magazine 1987-09, September
National Geographic Magazine 1973-01, January
National Geographic Magazine 1980-05, May
National Geographic Magazine 1986-04, April
National Geographic Magazine 1982-10, October
National Geographic Magazine 1979-04, April
National Geographic Magazine 1980-11, November
National Geographic 1994-09, September
National Geographic USA – January 2014
National Geographic Magazine 1984-09, September
National Geographic Magazine 1982-08, August
National Geographic 1996-04, April
National Geographic 1993-05, May
National Geographic Magazine 1988-07, July
National Geographic Magazine 1972-09, September
National Geographic Magazine 1981-06, June
National Geographic Magazine 1986-12, December
National Geographic Magazine 1976-06, June
National Geographic Magazine 1975-08, August
National Geographic Magazine 1984-10, October
National Geographic Magazine 1985-02, February
National Geographic Magazine 1979-06, June
