APA (7th ed.) Citation

MacLean, J. E., & MacLean, L. K. (1999). How children learn language. Singular Publ. Group.

Chicago Style (17th ed.) Citation

MacLean, James E., and Lee K. MacLean. How Children Learn Language. San Diego [u.a.]: Singular Publ. Group, 1999.

MLA (9th ed.) Citation

MacLean, James E., and Lee K. MacLean. How Children Learn Language. Singular Publ. Group, 1999.

Warning: These citations may not always be 100% accurate.