APA Style
Scientist, Young. (1990).
Our world In Danger .
USA:
World book International.
Chicago Style
Scientist, Young.
Our world In Danger.
USA:
World book International,
1990.
Text.
MLA Style
Scientist, Young.
Our world In Danger.
USA:
World book International,
1990.
Text.
Turabian Style
Scientist, Young.
Our world In Danger.
USA:
World book International,
1990.
Print.