APA (7th ed.) Citation

Vishwakarma, G. K., & Kumar, M. An Improved Class of Chain Ratio-Product Type Estimators in Two-Phase Sampling Using Two Auxiliary Variables. Wiley.

Chicago Style (17th ed.) Citation

Vishwakarma, Gajendra K., and Manish Kumar. An Improved Class of Chain Ratio-Product Type Estimators in Two-Phase Sampling Using Two Auxiliary Variables. Wiley.

MLA (9th ed.) Citation

Vishwakarma, Gajendra K., and Manish Kumar. An Improved Class of Chain Ratio-Product Type Estimators in Two-Phase Sampling Using Two Auxiliary Variables. Wiley.

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