APA Style
Keenan, Sheila, Jacobs, K.A. (1999).
What Time Is it? A Book of Math Riddles .
USA:
Scholastic INC.
Chicago Style
Keenan, Sheila, Jacobs, K.A.
What Time Is it? A Book of Math Riddles.
USA:
Scholastic INC,
1999.
Text.
MLA Style
Keenan, Sheila, Jacobs, K.A.
What Time Is it? A Book of Math Riddles.
USA:
Scholastic INC,
1999.
Text.
Turabian Style
Keenan, Sheila, Jacobs, K.A.
What Time Is it? A Book of Math Riddles.
USA:
Scholastic INC,
1999.
Print.