APA Style
Johns, Chris. (2004).
National Geographic: Harp Seals (Vol.205.No.3. March 2004).
United State of America:
National Geographic Society.
Chicago Style
Johns, Chris.
National Geographic: Harp Seals.
Vol.205.No.3. March 2004
United State of America:
National Geographic Society,
2004.
Text.
MLA Style
Johns, Chris.
National Geographic: Harp Seals.
Vol.205.No.3. March 2004
United State of America:
National Geographic Society,
2004.
Text.
Turabian Style
Johns, Chris.
National Geographic: Harp Seals.
Vol.205.No.3. March 2004
United State of America:
National Geographic Society,
2004.
Print.