APA
Wheldon H. J., Thirkettle G. L., . (1976). Wheldon's business statistics and statical method. Plymouth: Macdonald and Evans.
Chicago
Wheldon Harold J, Thirkettle G L, . 1976. Wheldon's business statistics and statical method. Plymouth: Macdonald and Evans.
Harvard
Wheldon H. J., Thirkettle G. L., . (1976). Wheldon's business statistics and statical method. Plymouth: Macdonald and Evans.
MLA
Wheldon Harold J, Thirkettle G L, . Wheldon's business statistics and statical method. Plymouth: Macdonald and Evans. 1976.