APA (7e ed.) Bronvermelding

Spalding, M. W. (1950). A guide for nature teaching in camps, schools and homes. Madison College.

Chicago (17e ed.) Bronvermelding

Spalding, Muad W. A Guide for Nature Teaching in Camps, Schools and Homes. Madison College, 1950.

MLA (9e ed.) Bronvermelding

Spalding, Muad W. A Guide for Nature Teaching in Camps, Schools and Homes. Madison College, 1950.

Let op: Deze citaties zijn niet altijd 100% accuraat.